This bike booster will probably come in at less than half the cost but the Bimotal kit is another option that doesn't have the tire wear issue, offers better performance, and the form factor is much nicer.
Wow, $2k? You could get a decent ebike for that money. And the installation doesn't look any easier than a hub motor... Only seems worth it if you already have an extremely nice bike. I think of friction drives as being aimed at budget-conscious commuters, not serious mountain bikers.
As a mountain biker I don’t see the appeal of this. Yes, this rather expensive solution could transform my nice bike into a shitty e-bike, but the point of having a nice bike is to avoid a shitty experience.
A proper e-bike needs to be designed as an e-bike from the beginning.
About tire wear, I know a guy who did custom "Solex" type bike racing, with a small, friction drive petrol engine on the front wheel.
It was so bad that the rear wheel ended up getting bigger at the end of the race, as it picked up rubber deposited by the front wheel!
Keep it mind it was custom bikes though, the front tire just had to finish the race, they used a roller made of hard materials and knurled. I don't remember the reason, but it probably had to do with the fact their engines were quite a bit more powerful than traditional ones despite having the same displacement.
That made me question who this is for. Looks like it's only for racing bikes that have taken off the rear mudguard. And those bikes are typically used to exercise..
Which makes me wonder about the cleaning after it rained..
A Skarper system [0] that drives through an adapted brake rotor sounds [1] like it is the way to go if really want [2] a well thought close to non-permanent conversion solution.
Yeah. I don’t see weather or theft addressed in this design.
I recall a wheel-mounted rotor system from a few years back that did address theft, tire-wear, and weather, but it suffered from far too little torque and very limited battery life.
It looks like their solution is to make it easy enough to install and remove you take it with you. My thought would be security bolts so the pool of thieves is at least limited to people with the right bolt head. Also it has a big battery built in so
Looks like you can't have a passenger anymore either. I like to have my kid on the backseat of my e-bike.
I'm not in the market for this, but I am in the market for making my cargo bike electric. Having to slow down at a traffic light and then start from zero absolutely sucks. It goes very slow, it is rough, and you won't have time. I'd use it just for that specific use-case.
Conversion kits that add a front hub motor are relatively affordable and easy to install. Should work with most cargo bikes if you can find one that's compatible with your wheel size. Something like: https://swytchbike.com/
Do they work with mountain bikes? As stupid as this sounds I like mountain biking but I don’t have stamina to climb up hills and then keep doing for a long time. I have an electric bike but designed for road
I'd be quite worried about breaking it in the not unlikely event of a crash, additionally it looks like it could quite significantly limit how low you could put your seat down on a mountain bike, so that would get in the way. Even if you got your seat down, it would add a significant amount of height above the tyre so you mighn't be able to move your arse far enough back to shift your weight property. It's also adding nearly 4kg weight relatively high up which probably isn't the end of the world but would be better if it wasn't so high up.
It says on the website it will fit hardtails but not full sus, and that it isn't recommended on knobby tyres due to performance which isn't ideal either.
I could be wrong on all of this but those are just the concerns coming to mind as another mountain biker.
Personally I also don't see the niche they serve. If I'm going far away I take a train or a car. I pretty much exclusively use my bike to ride to a nearby grocery store or do other close-by errands. If I'm doing short errands like this, I really prize being able to get on and off quickly and lock my bike up quickly. A device like this needs to be taken with you when you leave your bike to prevent theft. It's a whole nother step and a lot of extra weight
Pedal-assist electric rental bicycles are huge here in London.
It’s a relatively big city geographically, and it’s really nice to be able to do 5 - 10 miles in jeans and a long-sleeved shirt and not arrive at a social event in a sweat. The tube is really hot (high 30s!) in the summer and generally quite unpleasant (fleas in the upholstery!). So cruising around in the sun is a really big urban niche for rentals. Those that do lots of miles per day seem more likely to own e-bikes - delivery guys who probably average 50+ miles/day will absolutely feel the difference in their legs, and need to control their tiredness for their safety.
When I read your comment before the article I thought it was some sort of complicated contraption in multiple parts. Instead it seems pretty compact and easy to disengage. I’m not sure what you’re missing in terms of a niche either. Anyone who just wants to ride with less effort but use their existing bike?
You mean ebikes in general? I use one to commute to work in good weather. It's 8km and I'd be quite sweaty and impresentable for my work day without electric assist. In the evening I'm happy to ride back home with minimal or zero assist as my shower's waiting for me once I arrive.
People who already invested in an expensive traditional bike and want to have the option to add electric support to make trips easier and faster without having to deal with selling their current bike and buying an even more expensive e-bike.
There’s also the fact that many people have bike racks that are fine for traditional bikes but not the additional requirements necessary for some (most?) e-bikes such as weight and strength.
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Just because it doesn’t work for you and your specific worldview doesn’t mean others wouldn’t see value in it.
I had a gas powered goped that worked that way years ago. Had all those problems but it was fun. The second you hit any water the drive shaft would just spin against the tire.
There's a bunch of motors installable instead of the bottom bracket. E.g. from Bafang. You just connect it to a battery and that's it. The controller's inbuilt.
I remember back in the 90s some guys at my school fitted a whipper snipper motor to a 12” kiddy bike with a friction drive (I think it was a skateboard wheel fitted to the output shaft).
Chain moves side to side with gear changes, and adding extra chain tension with an extra drive sprocket could make the deraileur angry. Also, chain-tube geometry varies a lot. Not impossible, just more complicated than it might seem.
I ride an all-original 1970s steel-frame road bike, which seems like a prime candidate for this sort of product. I'm certain no sprocket-based design would fit it. I'd buy one of these if there was any way to lock it up.
Go ahead, sit down with a piece of paper and try to design it in a way that doesn’t prevent shifting, doesn’t skip under load, doesn’t require you to use a longer chain, works with rear suspension and doesn’t interfere with your legs.
I have only ever had nightmarish experiences dealing with ASUS products being DOA or broken. They might make good tech that is good when it works, but genuinely half of the things I've bought from asus (>10) have had issues and their support is genuinely the single worst support I have dealt with across any product domain.
It seems to me this is a product for almost no one. Inefficient delivery of power, bulky, "smart" detection in stead of reliable operation and most importantly, the only target market I could imagine cannot use it. Not sure about other places and climates, but over here, most bicycles have fenders.
Bicycles without fenders are typically used for specific recreational activities and those sure as heck do not want this clumsy thing attached.. If they want any form of electrical assistance they would want it a lot more sleek and efficient.
Other than that, it reminds me of the Spartamet, a Dutch piece of tech from 1985 which added a small combustion engine to an otherwise regular city bike.
> Bicycles without fenders are typically used for specific recreational activities
I'm guessing you are European? Bicycles in the US almost never have fenders except for old timey / retro style models. Fenders fell out of style in the 1980s and never really returned. People who do have them usually install them themselves as an upgrade.
Speaking as an American who owns a basic beach cruiser bicycle and
- puts less than 50 miles on it per year
- has zero desire nor space for a full electric bike
- would never use their bike in any kind of inclement weather
- would never use their bike for anything other than leisure
I think it might be aimed towards my demographic specifically?
Like this thing seems pretty neat, just strap it to my bike and go? Sign me up.
> Bicycles in the US almost never have fenders except for old timey / retro style models. Fenders fell out of style in the 1980s and never really returned.
Counterpoint: Portland OR, where I live — enormous bike city (in some rankings, the highest in the country) — and most have fenders due to the rainy climate much of the year.
If the road is even little bit wet like after rain or morning mist, the dirt from the road ends up in your backside without fenders unless you drive very slowly.
Find a bicycle without mudguards and ride very slowly, or just ride on clean roads on a sunny days.
Once you try a (good!) electric bike, you don't really want to go back. Life is just so much better. For urban commuting, you no longer think about heat (getting sweaty), distance, inclines, wind, etc.
Obviously I'm talking about good electric bikes, with mid-mounted engines that detect pedaling strength. These feel great, unlike electric motors strapped to bikes, which feel like, well, electric motors strapped to bikes.
A smartphone app to change motor speed, really? Not even talking about your motor getting hacked (with the S in IOT standing for security and all), getting out a fragile device that captures all your attention while biking is really dangerous for you and the device.
So they say there's a button on the thing itself which is not so much more practical. If they insist on wireless controls, the cost of a waterproof battery-powered button to stick on the handlebars sounds worth it.
What do you mean by changing motor speed? It has a cadence sensor so should work like normal ebikes. Pedal faster for more speed, stop pedaling for less speed.
The web page tells that the app can be used to switch between eco/normal mode but that seems to be the extent of it.
Power, not speed. Exactly because these kinds of kits don’t have a way to measure your power (effort), they need an external way to tell them how much you want them to be helping. So there are power levels (often 5) that change the power curve of the motor when it’s helping, usually helping more at lower speeds (likely uphill) and then fading out at higher speeds.
The strange part is that they already have wireless communication in the system, so adding a simple handlebar remote doesn't seem like a huge engineering leap
Throttled motors on ebikes are terribly unsafe, compared to pedal assist central motors. I just got rear-ended by an illegally hot-rodded fat bike with a throttle, when the asshole lost control of his bike after hitting my rear wheel trying to pass at illegally high speed without bothering to ring his bell, and he flipped over and spilled onto the bike path.
I was fine, but surprised he so carelessly and thoughtlessly sneaked up on me and tried to pass when I was already going fast downhill off of a bridge over a canal, on my legal eBike with 25 kph maximum assist.
Pedaling makes you pay attention and gives you direct control over the speed, and the assist drops out once you're going >25 kph. The asshole who hit me from behind probably didn't have time to find the throttle with his hand, and was never really in control of his bike or paying much attention up to when he freaked out and hit me.
This drives me mad as well. Electric bikes should be limited to 25kph and non throttled in Europe, yet half the bikes I see are both, and drive recklessly.
Throttled motors on ebikes are terribly unsafe, compared to pedal assist central motors.
Feels like an overgeneralization. I have a perfectly slow Ride1Up Roadster V3. It's a PA bike with a throttle, but it's not a hot rod. Max speed with my weight is around 20MPH. I use the throttle to just get moving on inclines or at stops when I forgot to downshift.
That said, there are plenty of idiots around on bikes and cars.
To be clear, when i said we need controls on the handlebars, i was talking about an "assist level setting" like you have on the app, not a throttle. I had this on all my electric bikes: a button and a small LCD to indicate assist level 0-3.
Although in my experience when your bike/cargo is heavily loaded, a throttle is nice to get running, especially when stopped at a red light going uphill. Borrowed one like this and it was really useful. But i agree with your sentiment i see many people with throttled bikes going really fast and careless.
The only feature I care about here, is that it charges over USB-C PD, which every ebike battery for the last 12 years could have done, and should have done, yet here we are.
Is it the very first? I have no idea. But it's the first that I've run across, and I'm ecstatic that it exists.
Proprietary power bricks for anything are stone-age and should be shunned by the market. Maybe the ebike market will start doing so.
I don’t think it would have been possible for the last 12 years. But should be possible now.
Only the 2021 spec for usb pd supports 36v (common bike battery voltage) and more than 100W delivery. My bosch ebike charges at 36v 4A.
I also think that a small usb c connector could easily break when used in an ebike. But this should not prevent standardizing a “bigger usb c” to be used in ebikes.
Ouch, love to see a great product like this. However, hate to see that bike theft wasn’t discussed at all.
“Easy installation” with two screws seems like a benefit to customers except when they come back to their parked bike only to find their expensive mod also had a hidden feature: “easy uninstallation”.
That is the same for most bicycle parts that you can remove with a small multitool and optionally a cable cutter yet most thieves just grub the whole bike as it is more convenient and it provides the getaway vehicle.
Solex got used much longer than post WWII, the engine is very easy to service. I had one when I was 15, and most of my friends did as well. Everyone in the village had either a "solex" or an old "mobilette".
I actually bought one of these and love it. My road bike is indistinguishable from any other normal road bike with the exception of it being much easier to get around now.
From experience I can say that it seems like a lot more common sense to simply replace the front wheel of your bike with a wheel containing an electric motor, rather than attaching whatever Asus is selling to your bike.
Note that this is the most common and cheap approach: a hub motor, battery, controller, Hall-effect cadence sensor. There are renowned Chinese companies that sell those and you can find great deals if you shop around.
Funny little gadget but I feel like ASUS is about 5 years too late. With so many alternatives for the same money a friction drive just looks like a solution to problems that don't really exist anymore
I can see who might actually buy this: some guy with an old Specialized that he can't bear to throw away, but who doesn't want to show up at work all sweaty. Strap it on, ride in. Take it off, toss it in a backpack. There's something cool about that. But 3.7 kg in a backpack... yeah, no thanks. I'd probably just get a proper city e-bike instead of messing around with this contraption
I really think ebikes, and things like this, would have a much better reputation if they really only supported up to maybe 10 km/h or 6 mph. This is a normalish running/jogging pace. Basically, they helped up hills and when tired but were not "motorcycles-lite". At least around us, in an area with lots of kids, people want to have them but there are so many injuries and problems that sentiment is generally very negative. And I think all you need to "make biking easy" is low speed assist. You don't need support up to 20 mph for that.
You sound like you might not ride bikes often, or you're from an area where bikes are mostly used by kids? I commute daily on one of the most popular commuter paths in the country and I would say most commuters I see are averaging about 15 mph (while moving) with or without an electric motor. Plenty of people commute at the 20 mph max legal speed that pedal assist bikes allow, and I also see a lot of people on acoustic bikes hitting 20-25 or faster.
Many commuters on e-bikes are people who otherwise would be driving a car, so e-bikes that help people commute to work in a timely manner are critical. At the end of the day people are going to do the thing that is competitive on time and if we want to reduce the crush of car traffic around the country then we need the people who can bike to go out and do it.
So, this won't work on any regular bike that has a fender, which is most 'regular' bikes people would use for city-driving/daily commutes. (At least in area's that get rain occasionally.
It says it has a wireless cadence sensor. With that said, torque sensors were an improvement over cadence sensors.
To elaborate a bit, friends of mine have had bikes with both cadence and torque sensors. And I've tried their bikes out. Agreeing with one friend, the bike with the cadence sensor seems to decide how fast it wants to go.
The bike with the torque sensor behaves a lot more like what you're used to from riding a conventional bike. After all, the control input to a conventional bike is torque.
> The bike with the torque sensor behaves a lot more like what you're used to from riding a conventional bike
I agree, but would like to point out that sometimes this might not be what you want. I had a bike with a front motor and a cadence sensor that I used for my commute for a few years, and was very happy with the motor just pulling me along while I lazily pushed the pedals with ~zero torque, barely enough to let the bike know I'm there. Basically like pressing a throttle. If all you want is to get from A to B comfortably, I've found this to be superior to a torque sensor, and it was also dirt cheap.
> the bike with the cadence sensor seems to decide how fast it wants to go
Well yes, because there’s no other input. It’s an on/off switch, the bike just knows that you’re pedaling. Usually there are multiple power levels you can switch between with a button, and those decide roughly how much of a push you get from the motor, but the power curves are all “hardcoded”. It doesn’t feel great for active riding, but it’s adequate for commuter bikes. Torque sensors are actually kind of expensive on their own.
"The noise is higher than a conventional e-bike motor and is high-pitched, similar to an RC car, although quieter than some other conversion kits they had tested."
That might be the easiest ebike retrofit/conversion I've ever seen. I have concerns about the grip in wet conditions but this looks like a great way to get that ebike I've wanted and not put my perfectly good frame to waste.
Similar friction drives have existed for a while. The battery is very small compared to a regular ebike (typically they start at about 300wh.) Also, IIRC the friction drive is not very efficient.
If I'm carrying around a giant battery I ought to be able to charge my devices from it, but it is silent on that front.
The design doesn't work if you have a mud guard or pannier rack. Also unclear how easily it is detached. Do I have to take it off everytime to prevent casual thievery? How do I take it off to charge inside? Does it have anti-theft bricking?
I'm struggling to understand who the target market is.
A couple other people here mentioned that theft is an issue. That's yet another reason why folding bikes seemed like the best use case for this. Not as good as a folding bike that's made for being an E bike, but if you've already got a good folding bike and a bit more zip on your commute is what you need, this seems like a interesting product.
*“VéloSoleX is a moped, or motorised bicycle, usually just referred to as 'Solex', […] originally created during World War II and mass-produced between 1946 and 1988, came in various iterations, while keeping the same concept of a motor with a roller resting on the front wheel of a bicycle”*
This powers the back wheel, though. I think that’s better for propulsion but it seems you’re giving up carrying stuff or a child on the back of the bicycle. Can’t even have a rack there with this contraption.
All these sites have hype about AI features like AI Chat. however I use the chat, and it wastes about 3-10 seconds just to load, then I ask for the price, and it fails to understand even the page we were on (edit: "I don't understand what product you're referring to, please tell me the product"). Then I literally paste the page's product from the page into the chat, and it finally wastes my time more and sends a whole essay blob about why it can't tell me the price.
Is this what investors sell to the board about how they are using AI for greater efficiency? Just to waste consumers time even more?
I kind of like this. Not because it's necessarily the best way to electrify a bike, but because it's removable enough that your bike can still just be... a bike
It looks like you have to remove your rear fender thought. I would rather just use the rye bread engine a little more, than not being able to bike on wet roads (or being sprayed with mud).
It’s interesting in terms of the economics of development.
This product takes advantage of advancements in lithium-ion battery technology driven by phones and cars, benefiting from improvements in both performance and cost at scale without requiring extensive additional research. Looking forward to trying it.
As a cyclist, I thought this was a joke. Cycling is very efficient mode of transport, if anyone needs this kind of assistance (like those people on the stock photos), they are insanely out of shape.
« This kind of assistance » allow one, even in shape, to go to work by bike in many places where your employer has no shower, or you don’t want to be drenched in sweat twice per day. Not all the word is flat. My work place was 540m elevation lower than my house, and before good electric bikes it was quite hard do that by bike.
Wait until you hear how many people drive a car every day.
But less facetiously: there are large demographics that might ride bicycles more if it was slightly easier for them, including older people and people with mobility issues. I don’t have opinions particular to this product, but expanding the feasibility of cycling seems like a generally good thing to me.
The friction-drive approach is interesting, especially at 3.7 kg. I’d be curious how the drive wheel affects tire wear and performance in wet conditions over time.
I just bought a Boost conversion kit from the UK and am excited to install it in a couple weeks. If anyone has installed this kit would appreciate a comment on the experience.
(I'm in the US and have been unimpressed with the kits available here. The Boost one looks compact and well designed).
Hah, my dad made something like this for me when I was a kid using a weed eater engine, with a makeshift lever as a clutch to engage/disengage it. This looks about as makeshift, I wouldn't trust it for serious use.
This would be great to add to my 9 year old's bike. We couldn't do long bike tours anymore because he would stop biking after 100m, telling is he is completely exhausted and must go home. I was looking for something like this!
I’m pretty sure I’d have preferred a poorly controlled motor over staring at my dad’s ass at 9 years old. Luckily we didn’t have either, we used a dog leash for towing.
Yes, we already have this (Follow-Me - the swiss company). However, my 9yo and his bike is too heavy for that. I was able to carry/drag his bike from about 3y till about 6yo.
> Oxiis is a universal, friction-drive motor system that transforms any conventional bicycle into a smart e-bike. Its name fuses the Greek Oxis (agility) and Axis (pivot)—perfectly reflecting how its high-performance drive core delivers ultimate acceleration and instant, nimble responsiveness right to your ride.
This sounds like LLM-generated to me, but I find it difficult to point out why.
People really owe it to themselves to try an ebike from an recognised road bike brand. They've been at it for a decade or so now, and even early 20's efforts are a different class in terms of riding experience, refinement and practicality.
Summers ending, watch your bike dealers for deep discounts!
It feels like a great product but targeted at a surprisingly transient customer base.
The cycling guys won't buy it, they want the watts from their legs.
The commuters will just get an ebike eventually.
The getting started crowd will eventually become one of these 2 or stop riding a bike altogether. Since I didn't see how much this cost, if it cost as much as a commuter bike, I really don't know who would buy something like this.
Haha, I like all these adapter designs though my favourite was the Copenhagen Wheel[0]. I saw someone ride one near Mission and S Van Ness and loved it. Sleek device. This particular one in the OP is definitely built for safe societies, right? Definitely not for the North American market, haha!
Basically, the Copenhagen Wheel moved all the complexity of setting up a hub motor drive system - motor, battery, controller, sensors, computer - into the hub shell itself.
Which made it seem neat and clean, but meant it had serious reliability issues, couldn't handle wet conditions[], wasn't really repairable, and was expensive compared to more reliable alternatives with better battery life, etc.
Psst, you can escape an asterisk [*] with a backslash.
Hub gears work quite well though don't they? In particular respect of being sealed and protected from the weather. Unclear why there's an opposite effect for this wheel.
I see. The way I spoke made it seem like I was talking about the Copenhagen wheel with the phrase “this particular one”. I was talking about the OP device. Obviously since Mission and SVN is in the US I would have assumed it was not the CW but I can see that I was unclear so I have clarified. The Copenhagen wheel is pretty integrated. This one is a thumb screw and off you run with a valuable battery. I wouldn’t buy it here and I bike every day in the city.
People who don’t bicycle in North America won’t quite get it. It’s not exactly Taiwan. Theft is rampant and it’s societally sanctioned in most major cities.
10 km Sports and 50 km Eco range is a no go. Plus they explicitly deny carbon fiber bikes, bikes with suspension, and tire choice is rather limited. You could've invested in a decent trekking bike with a standard motor instead, at least you get that hind wheel storage space free.
Me: when's the bike booster available to purchase?
ASUS AI: For the most accurate and up-to-date product release information, we recommend following our Facebook and Instagram channels. We share all our launch announcements there first, along with exciting product previews.
Hilarious advice given both Meta products are notorious for not showing everything from the accounts you follow.
I absolutely would not give up my double panniers and rack. I put a small Tom Bihn Bag "Daylight Backpack" with my laptop in one, and the bike charger and food and other junk in the other, empty my pockets into the zipper bag, and then I'm totally unencumbered for riding and have unlimited distance since I can plug in and charge the battery if it gets low. Riding with a backpack on my back or even stuff in my pockets is a drag. The panniers are also great for grocery and other shopping.
In the USA, there are more than 52 jurisdictions not including towns and cities and counties, but most (not all) states think of ebikes as being slightly restricted bicycles rather than motorcycles, as long as:
- they have functional pedals (otherwise it's a motorcycle of some kind)
- they require pedal assist at all times and have some kind of power or speed limitation (anyone can use this, or at least it is least restricted)
- they have pedal assist available and have a different, higher power or speed limitation (usually reserved for 16+ or something similar)
- they have a power or speed limitation that makes them suitable for adults only but doesn't require a driver's license or inspection
There are efforts to regularize these, and also efforts to make things more chaotic. For example, New Jersey decided that all ebikes require a new ebike license and vehicle registration. Across the river in New York, no ebikes require a license or registration, and may be operated on any street which has a 30mph speed limit or less... but cities are allowed to make their own rules.
California's laws are mostly regarded by bicyclists as being sensible, at least in every discussion I've seen that didn't feature a twelve year old trying to convince his parents to buy him a 70mph electric motorcycle. See https://thecyclistchoice.com/resources/california-ebike-laws...
In most jurisdictions it's only a motorcycle if it can exceed a certain speed or has a motor over a certain power in kilowatts. Or some combination of both.
There's no restriction on manufacturing e-bikes anywhere that I know of, as long as they obey the speed/power limits. (That's why it says 500W "peak" power - the continuous power limit in the UK at least is 250W but manufacturers just make the "peak" last for a very long time.)
I see winter version of this. You need custom roller with holes for a particular stud pattern. So there is no slipping and no tire wear. And maybe the roller is made of metal so the snow does not stick to it.
If I bought this I might want a brake upgrade. Even though it probably provides only about 150W (I always assume ebike power ratings are inflated), the extra weight alone warrants disc brakes IMHO.
When I see obvious out of shape ebikers passing me uphill while barely moving their legs, I’m assuming that the power rating of their ebike is about right and the torque curve might be weird to stay legal.
I agree that rim brakes on an e-bike is extra bad.
some bike vendor told me that the biggest problem with regular to ebike conversion was that regular bike frames were not strong enough to support the additional forces that the electric bike imposed. And it was why the ebikes were much heavier than regular bikes.
Does anyone know if that’s true and if that applies to conversions like this one?
It's less of an issue for this device. The reason is that the motor is further from the axle than a hub motor would be. Thus, there's less force on the frame for a given amount of torque.
Depends on the bike and motor combo. Something like a mountain bike from the last 20 years would be fine, but I wouldn’t try and put one on like a road bike from the 70s or something. Basically anything that’s well built sturdy steel is going to be ok with the common sub kilowatt motors, but there are like crazy ones that will output considerably more power than that.
Also that’s going to be more applicable with a mid drive or a hub motor than something like this.
i have a folding cycle and a fat bike. my only two devices still analog and keep me reasonably fit. i dont wanna e-bike them. but if i wanna long distance, this could be nice.
not really interested in this weird thing, but does anyone know what kind of bike is in the top picture? steel frame, machined brake calipers, really looks very attractive and light for a commuter.
These would be great for many places that have storage restrictions on e-bikes, but not normal bikes. So you can easily detach and bring with you before storing it.
Specialized Vado SL 5 would be my entry level. But anything with a Bosch/Shimano Steps/Giant (same mfr as Specialized) mid-drive. Smooth as butter, and these brands still ride like a normal bike.
Anything for the world to actually avoid the health benefits of riding a bike. What is wrong with a standard human powered bike? I expect a global obesity epidemic in 10 years as people begin buying/building WALL-E-style beds.
People with knee problems, areas with hills. An ebike is still active movement; sure you're not getting any cardio, but it's immeasurably better than driving. If this (or any ebike) is a thing that gets someone on a bike that otherwise wouldn't be on a bike, it is a good thing. For some it might be a stepping stone, for others it allows them to ride where they can't/won't ride at all.
"Physical activity gains from active travel are similar in e-bikers and cyclists."
E-bikes make people who aren't fit enough to ride muscle powered bikes to start doing moderate exercise on local trips they would used cars for before.
How can they be the same? One requires much more physical effort. That sounds like junk science. Perhaps they are similar type of gain but the difference in actual result must be a canyon wide.
Following a heart attack, I got a pedal assist, I got hundreds of hours of exercise and outdoors. You always are exercising, just lightly, and you can adjust your input level upwards at will. Brake fluid issues got me back onto my push bike this week. It's different - there's definitely more effective strength training going on in accelerating and climbing hills. Otherwise, it's not THAT much of a difference. I just go slower. 10 mph rather than ~15.
Found the person who lives in Kansas. Sometimes I just want to ride to work without having to deal with that 2km hill on the way. And my bike is still human-powered, with electric assist. Do you not know how e-bikes work, perhaps?
I have ridden a pedal assist ebike and the amount of push I apply to a pedal is 100x less effort than I would to a standard bike. There is no way the physical benefits are remotely the same. Good for you for avoiding exercise though. Also I live in Brooklyn with plenty of long hills. I also have plenty of friends with ebikes here who swear by them like you do. They struggle with health issues related to physical activity. Obviously having some sort of engine, pedal-assist or not is convenient but do you really understand the cost. You might as well drive and move the non-gas pedal foot up and down for the same benefit.
I suspect not. Even though ebikes are common now, I often hear this comment. Ebikes assist your pedaling; they don't pedal for you. (Well some can pedal for you but you learn quickly that if you let the motor do all the work you'll run the battery down and then you will have to do all the work pedaling a 65-lb bicycle home.)
Lots of people seem to think if a motor is present, then the motor is doing all the work. Ebikes are not motorcycles. What the motor actually does is make the hills less steep and less long. It's a lowpass filter for terrain.
Friction drive e-bike conversions were popular years ago.
They generally:
* Wear tires surprisingly quickly
* Absolutely suck in any form of weather or terrain condition (dirt, rain, etc.)
* Have ~20% less efficiency than any other drive form.
But, they are easy, and they do work.
This bike booster will probably come in at less than half the cost but the Bimotal kit is another option that doesn't have the tire wear issue, offers better performance, and the form factor is much nicer.
https://bimotal.com/products/elevate
Wow, $2k? You could get a decent ebike for that money. And the installation doesn't look any easier than a hub motor... Only seems worth it if you already have an extremely nice bike. I think of friction drives as being aimed at budget-conscious commuters, not serious mountain bikers.
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As a mountain biker I don’t see the appeal of this. Yes, this rather expensive solution could transform my nice bike into a shitty e-bike, but the point of having a nice bike is to avoid a shitty experience.
A proper e-bike needs to be designed as an e-bike from the beginning.
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That's a terrible kit that should never be considered. You can get 6kW monster kits like the CYC X1 Pro, and battery, for that price!
Oh I like this idea. Looks simple and lightweight.
Expensive as f though. Also the gear-thingy looks proprietary (=expensive).
About tire wear, I know a guy who did custom "Solex" type bike racing, with a small, friction drive petrol engine on the front wheel.
It was so bad that the rear wheel ended up getting bigger at the end of the race, as it picked up rubber deposited by the front wheel!
Keep it mind it was custom bikes though, the front tire just had to finish the race, they used a roller made of hard materials and knurled. I don't remember the reason, but it probably had to do with the fact their engines were quite a bit more powerful than traditional ones despite having the same displacement.
Had to look this up: https://www.youtube.com/watch?v=xmKoC57UWUI
Also:
* you cannot install them on bikes with a rear rack. Here most city bikes have them.
That made me question who this is for. Looks like it's only for racing bikes that have taken off the rear mudguard. And those bikes are typically used to exercise..
Which makes me wonder about the cleaning after it rained..
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Removing a rear rack is a few minutes with a screwdriver. I have my stuff in a rucksack. Good to point out, but will not stop most users I imagine.
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Absolutely.
A Skarper system [0] that drives through an adapted brake rotor sounds [1] like it is the way to go if really want [2] a well thought close to non-permanent conversion solution.
[0] https://skarper.com/
[1] https://road.cc/ebiketips/review_v2/skarper-ebike-drive-syst... .
[2] Compared to other conversion options they are currently expensive https://road.cc/ebiketips/content/advice/buyers-guide/best-e...
And, don't forget: easy to steal off even a well-secured bicycle.
That's not a problem in Asia.
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Yeah. I don’t see weather or theft addressed in this design.
I recall a wheel-mounted rotor system from a few years back that did address theft, tire-wear, and weather, but it suffered from far too little torque and very limited battery life.
It looks like their solution is to make it easy enough to install and remove you take it with you. My thought would be security bolts so the pool of thieves is at least limited to people with the right bolt head. Also it has a big battery built in so
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Can't use with mud guards
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Millions and millions of people live in places where theft isn't a concern.
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Looks like you can't have a passenger anymore either. I like to have my kid on the backseat of my e-bike.
I'm not in the market for this, but I am in the market for making my cargo bike electric. Having to slow down at a traffic light and then start from zero absolutely sucks. It goes very slow, it is rough, and you won't have time. I'd use it just for that specific use-case.
Conversion kits that add a front hub motor are relatively affordable and easy to install. Should work with most cargo bikes if you can find one that's compatible with your wheel size. Something like: https://swytchbike.com/
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If it’s for a chill cargo bike, just get a hub motor kit. It’s the proper solution, there are tons of them and they are cheap and durable.
Front mount or trailer for kid could work, but this seems inferior to your ebike.
Do they work with mountain bikes? As stupid as this sounds I like mountain biking but I don’t have stamina to climb up hills and then keep doing for a long time. I have an electric bike but designed for road
I'd be quite worried about breaking it in the not unlikely event of a crash, additionally it looks like it could quite significantly limit how low you could put your seat down on a mountain bike, so that would get in the way. Even if you got your seat down, it would add a significant amount of height above the tyre so you mighn't be able to move your arse far enough back to shift your weight property. It's also adding nearly 4kg weight relatively high up which probably isn't the end of the world but would be better if it wasn't so high up.
It says on the website it will fit hardtails but not full sus, and that it isn't recommended on knobby tyres due to performance which isn't ideal either.
I could be wrong on all of this but those are just the concerns coming to mind as another mountain biker.
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Maybe get an E-MTB instead?
Wet-weather performance in particular seems like the thing I'd want to see independently tested
Personally I also don't see the niche they serve. If I'm going far away I take a train or a car. I pretty much exclusively use my bike to ride to a nearby grocery store or do other close-by errands. If I'm doing short errands like this, I really prize being able to get on and off quickly and lock my bike up quickly. A device like this needs to be taken with you when you leave your bike to prevent theft. It's a whole nother step and a lot of extra weight
Are you elderly, differently able, live in extremely hilly or hot terrain, or only willing to bike if it’s half the current effort?
That plus “already has a bike” is a massive market.
Pedal-assist electric rental bicycles are huge here in London.
It’s a relatively big city geographically, and it’s really nice to be able to do 5 - 10 miles in jeans and a long-sleeved shirt and not arrive at a social event in a sweat. The tube is really hot (high 30s!) in the summer and generally quite unpleasant (fleas in the upholstery!). So cruising around in the sun is a really big urban niche for rentals. Those that do lots of miles per day seem more likely to own e-bikes - delivery guys who probably average 50+ miles/day will absolutely feel the difference in their legs, and need to control their tiredness for their safety.
When I read your comment before the article I thought it was some sort of complicated contraption in multiple parts. Instead it seems pretty compact and easy to disengage. I’m not sure what you’re missing in terms of a niche either. Anyone who just wants to ride with less effort but use their existing bike?
You mean ebikes in general? I use one to commute to work in good weather. It's 8km and I'd be quite sweaty and impresentable for my work day without electric assist. In the evening I'm happy to ride back home with minimal or zero assist as my shower's waiting for me once I arrive.
Plenty of people in cities commute less than 10 miles and can bring their bikes into their work to keep them safe.
People who already invested in an expensive traditional bike and want to have the option to add electric support to make trips easier and faster without having to deal with selling their current bike and buying an even more expensive e-bike.
There’s also the fact that many people have bike racks that are fine for traditional bikes but not the additional requirements necessary for some (most?) e-bikes such as weight and strength.
—-
Just because it doesn’t work for you and your specific worldview doesn’t mean others wouldn’t see value in it.
I had a gas powered goped that worked that way years ago. Had all those problems but it was fun. The second you hit any water the drive shaft would just spin against the tire.
Are there any mechanically coupled solutions that can be field installed by the owner?
There's a bunch of motors installable instead of the bottom bracket. E.g. from Bafang. You just connect it to a battery and that's it. The controller's inbuilt.
Swytch Bike is one. Hub motor.
I remember back in the 90s some guys at my school fitted a whipper snipper motor to a 12” kiddy bike with a friction drive (I think it was a skateboard wheel fitted to the output shaft).
I made one in 1985 for my 10 speed bike, it was pretty fun for a while. I was in my early teens at the time.
They could have made basically the same thing except with a sprocket to help drive the chain.
Chain moves side to side with gear changes, and adding extra chain tension with an extra drive sprocket could make the deraileur angry. Also, chain-tube geometry varies a lot. Not impossible, just more complicated than it might seem.
I ride an all-original 1970s steel-frame road bike, which seems like a prime candidate for this sort of product. I'm certain no sprocket-based design would fit it. I'd buy one of these if there was any way to lock it up.
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Go ahead, sit down with a piece of paper and try to design it in a way that doesn’t prevent shifting, doesn’t skip under load, doesn’t require you to use a longer chain, works with rear suspension and doesn’t interfere with your legs.
Tires wear out super fast. It's hard to say there is a market for this other than the uninformed.
I have only ever had nightmarish experiences dealing with ASUS products being DOA or broken. They might make good tech that is good when it works, but genuinely half of the things I've bought from asus (>10) have had issues and their support is genuinely the single worst support I have dealt with across any product domain.
It seems to me this is a product for almost no one. Inefficient delivery of power, bulky, "smart" detection in stead of reliable operation and most importantly, the only target market I could imagine cannot use it. Not sure about other places and climates, but over here, most bicycles have fenders.
Bicycles without fenders are typically used for specific recreational activities and those sure as heck do not want this clumsy thing attached.. If they want any form of electrical assistance they would want it a lot more sleek and efficient.
Other than that, it reminds me of the Spartamet, a Dutch piece of tech from 1985 which added a small combustion engine to an otherwise regular city bike.
https://nl.wikipedia.org/wiki/Spartamet
> Bicycles without fenders are typically used for specific recreational activities
I'm guessing you are European? Bicycles in the US almost never have fenders except for old timey / retro style models. Fenders fell out of style in the 1980s and never really returned. People who do have them usually install them themselves as an upgrade.
Speaking as an American who owns a basic beach cruiser bicycle and
- puts less than 50 miles on it per year
- has zero desire nor space for a full electric bike
- would never use their bike in any kind of inclement weather
- would never use their bike for anything other than leisure
I think it might be aimed towards my demographic specifically?
Like this thing seems pretty neat, just strap it to my bike and go? Sign me up.
> Bicycles in the US almost never have fenders except for old timey / retro style models. Fenders fell out of style in the 1980s and never really returned.
Counterpoint: Portland OR, where I live — enormous bike city (in some rankings, the highest in the country) — and most have fenders due to the rainy climate much of the year.
If you use your bike for 50 miles a year, why do you even need that thing?
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If the road is even little bit wet like after rain or morning mist, the dirt from the road ends up in your backside without fenders unless you drive very slowly.
Find a bicycle without mudguards and ride very slowly, or just ride on clean roads on a sunny days.
When it's wet, the engine will have less traction too.
I can see one audience: someone with a bike they already like who only occasionally needs assistance and wants the whole thing removable
Once you try a (good!) electric bike, you don't really want to go back. Life is just so much better. For urban commuting, you no longer think about heat (getting sweaty), distance, inclines, wind, etc.
Obviously I'm talking about good electric bikes, with mid-mounted engines that detect pedaling strength. These feel great, unlike electric motors strapped to bikes, which feel like, well, electric motors strapped to bikes.
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A smartphone app to change motor speed, really? Not even talking about your motor getting hacked (with the S in IOT standing for security and all), getting out a fragile device that captures all your attention while biking is really dangerous for you and the device.
So they say there's a button on the thing itself which is not so much more practical. If they insist on wireless controls, the cost of a waterproof battery-powered button to stick on the handlebars sounds worth it.
What do you mean by changing motor speed? It has a cadence sensor so should work like normal ebikes. Pedal faster for more speed, stop pedaling for less speed.
The web page tells that the app can be used to switch between eco/normal mode but that seems to be the extent of it.
Power, not speed. Exactly because these kinds of kits don’t have a way to measure your power (effort), they need an external way to tell them how much you want them to be helping. So there are power levels (often 5) that change the power curve of the motor when it’s helping, usually helping more at lower speeds (likely uphill) and then fading out at higher speeds.
The strange part is that they already have wireless communication in the system, so adding a simple handlebar remote doesn't seem like a huge engineering leap
Throttled motors on ebikes are terribly unsafe, compared to pedal assist central motors. I just got rear-ended by an illegally hot-rodded fat bike with a throttle, when the asshole lost control of his bike after hitting my rear wheel trying to pass at illegally high speed without bothering to ring his bell, and he flipped over and spilled onto the bike path.
I was fine, but surprised he so carelessly and thoughtlessly sneaked up on me and tried to pass when I was already going fast downhill off of a bridge over a canal, on my legal eBike with 25 kph maximum assist.
Pedaling makes you pay attention and gives you direct control over the speed, and the assist drops out once you're going >25 kph. The asshole who hit me from behind probably didn't have time to find the throttle with his hand, and was never really in control of his bike or paying much attention up to when he freaked out and hit me.
What to do about fatbikes endangering our safety?
https://www.reddit.com/r/Netherlands/comments/1knza1c/what_t...
Fatbikes in the Netherlands 2026: What You Actually Need to Know
https://bikefair.org/blog/fatbikes-netherlands-guide-2026
This drives me mad as well. Electric bikes should be limited to 25kph and non throttled in Europe, yet half the bikes I see are both, and drive recklessly.
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Throttled motors on ebikes are terribly unsafe, compared to pedal assist central motors.
Feels like an overgeneralization. I have a perfectly slow Ride1Up Roadster V3. It's a PA bike with a throttle, but it's not a hot rod. Max speed with my weight is around 20MPH. I use the throttle to just get moving on inclines or at stops when I forgot to downshift.
That said, there are plenty of idiots around on bikes and cars.
https://ride1up.com/product/roadster-v3/
To be clear, when i said we need controls on the handlebars, i was talking about an "assist level setting" like you have on the app, not a throttle. I had this on all my electric bikes: a button and a small LCD to indicate assist level 0-3.
Although in my experience when your bike/cargo is heavily loaded, a throttle is nice to get running, especially when stopped at a red light going uphill. Borrowed one like this and it was really useful. But i agree with your sentiment i see many people with throttled bikes going really fast and careless.
Clive Sinclair designed one of these in the 90s. It actually sold reasonably well, but was limited by the available battery technology of the period.
https://rk.nvg.ntnu.no/sinclair/vehicles/zeta.htm
Yes my grandfather had one. It worked well on flat terrain. I think it used a motorcycle battery so batteries were easy to find and charge.
Great piece of knowledge - thanks!
The only feature I care about here, is that it charges over USB-C PD, which every ebike battery for the last 12 years could have done, and should have done, yet here we are.
Is it the very first? I have no idea. But it's the first that I've run across, and I'm ecstatic that it exists.
Proprietary power bricks for anything are stone-age and should be shunned by the market. Maybe the ebike market will start doing so.
I don’t think it would have been possible for the last 12 years. But should be possible now.
Only the 2021 spec for usb pd supports 36v (common bike battery voltage) and more than 100W delivery. My bosch ebike charges at 36v 4A.
I also think that a small usb c connector could easily break when used in an ebike. But this should not prevent standardizing a “bigger usb c” to be used in ebikes.
From the FAQ:
> ...rated IPX4 for water resistance ...suitable for use in light rain, but it should not be exposed to heavy rain or submerged in water.
A bike part you can't use in more than light rain seems like a pretty big drawback to me.
Good find. Most people can probably live with not using it in heavy rain, but the text implies it can break even if exposed to heavy rain when parked.
Also doesn't look compatible with a rear fender
Ouch, love to see a great product like this. However, hate to see that bike theft wasn’t discussed at all.
“Easy installation” with two screws seems like a benefit to customers except when they come back to their parked bike only to find their expensive mod also had a hidden feature: “easy uninstallation”.
That is the same for most bicycle parts that you can remove with a small multitool and optionally a cable cutter yet most thieves just grub the whole bike as it is more convenient and it provides the getaway vehicle.
Most bicycle parts don’t cost thousands of dollars though
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pitlock pit stoppers?
https://www.pitlock.de/en/set-sichert-2-innensechskantschrau...
You don't even need to unscrew the motor : simply pull one-handed the seat release lever, and leave with both the seat and the motor attached.
In addition to the theft concerns, it's also not a great product.
for the non bikers, to help us understand, whats wrong with it?
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in addition, it also has not a great name... the word Oxis in Greek means "sharp", not agile. you can look for "οξύς"
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They could ship it with a pair of those bolts where the heads break off during installation
This product is for people who live in safe neighborhoods and bike a lot, aka not the average American.
Where do you live where people bike a lot and yet bike theft isn't common?
I remember these, from when I was young: https://www.youtube.com/watch?v=RNtHBEdZDYs
Funny, a modern version of WWII era technology
https://en.wikipedia.org/wiki/V%C3%A9loSoleX
Somehow when I was a kid, the local Schwinn dealer got a bunch of Solex bikes. I remember their primary use was trying to get the motor started.
Solex got used much longer than post WWII, the engine is very easy to service. I had one when I was 15, and most of my friends did as well. Everyone in the village had either a "solex" or an old "mobilette".
If I ever convert my bike to electric, I'll probably go with this https://www.swytchbike.com/
I actually bought one of these and love it. My road bike is indistinguishable from any other normal road bike with the exception of it being much easier to get around now.
From experience I can say that it seems like a lot more common sense to simply replace the front wheel of your bike with a wheel containing an electric motor, rather than attaching whatever Asus is selling to your bike.
Do you feel the power is sufficient? It says it's only a 250 W motor. What is the battery range?
Note that this is the most common and cheap approach: a hub motor, battery, controller, Hall-effect cadence sensor. There are renowned Chinese companies that sell those and you can find great deals if you shop around.
Care to share a few brand names or links?
Funny little gadget but I feel like ASUS is about 5 years too late. With so many alternatives for the same money a friction drive just looks like a solution to problems that don't really exist anymore I can see who might actually buy this: some guy with an old Specialized that he can't bear to throw away, but who doesn't want to show up at work all sweaty. Strap it on, ride in. Take it off, toss it in a backpack. There's something cool about that. But 3.7 kg in a backpack... yeah, no thanks. I'd probably just get a proper city e-bike instead of messing around with this contraption
I'm some guy with a Specialized E bike, you can imagine my attachment is profound.
I can't even look at this device without cheering myself on for buying the complete package, rather than messing around with gizmos.
ASUS manager: "now memory is scarce, does it even make sense to produce more motherboards"?
ASUS employee: "maybe not, but I hear that electric bikes are hot"
I really think ebikes, and things like this, would have a much better reputation if they really only supported up to maybe 10 km/h or 6 mph. This is a normalish running/jogging pace. Basically, they helped up hills and when tired but were not "motorcycles-lite". At least around us, in an area with lots of kids, people want to have them but there are so many injuries and problems that sentiment is generally very negative. And I think all you need to "make biking easy" is low speed assist. You don't need support up to 20 mph for that.
> I really think ebikes, and things like this, would have a much better reputation if they really only supported up to maybe 10 km/h or 6 mph.
Where is it ebikes don't have a good reputation?
Where I'm living, they have a very good reputation, and very many have them.
The motor shuts off at 26km/h.
You sound like you might not ride bikes often, or you're from an area where bikes are mostly used by kids? I commute daily on one of the most popular commuter paths in the country and I would say most commuters I see are averaging about 15 mph (while moving) with or without an electric motor. Plenty of people commute at the 20 mph max legal speed that pedal assist bikes allow, and I also see a lot of people on acoustic bikes hitting 20-25 or faster.
Many commuters on e-bikes are people who otherwise would be driving a car, so e-bikes that help people commute to work in a timely manner are critical. At the end of the day people are going to do the thing that is competitive on time and if we want to reduce the crush of car traffic around the country then we need the people who can bike to go out and do it.
In that case I would support promoting 20+ mph e-bikes as e-scooters, make them easy to get, cheap/free to license and call it a day.
"Bikes" with 20-30mph speed are awesome, much healthier than gas vespas, and much cheaper and more sustainable than cars.
So, this won't work on any regular bike that has a fender, which is most 'regular' bikes people would use for city-driving/daily commutes. (At least in area's that get rain occasionally.
You could replace your regular fender/mudguard with an "ass-saver" type that sticks out parallel to the ground.
But in any case wet tyres would have a negative impact on the ability of this device to efficiently drive the tyre.
It is decoupled from drivetrain. So, without torque sensor, how does it know when the rider wants to speed up vs. slow down?
It says it has a wireless cadence sensor. With that said, torque sensors were an improvement over cadence sensors.
To elaborate a bit, friends of mine have had bikes with both cadence and torque sensors. And I've tried their bikes out. Agreeing with one friend, the bike with the cadence sensor seems to decide how fast it wants to go.
The bike with the torque sensor behaves a lot more like what you're used to from riding a conventional bike. After all, the control input to a conventional bike is torque.
> The bike with the torque sensor behaves a lot more like what you're used to from riding a conventional bike
I agree, but would like to point out that sometimes this might not be what you want. I had a bike with a front motor and a cadence sensor that I used for my commute for a few years, and was very happy with the motor just pulling me along while I lazily pushed the pedals with ~zero torque, barely enough to let the bike know I'm there. Basically like pressing a throttle. If all you want is to get from A to B comfortably, I've found this to be superior to a torque sensor, and it was also dirt cheap.
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> the bike with the cadence sensor seems to decide how fast it wants to go
Well yes, because there’s no other input. It’s an on/off switch, the bike just knows that you’re pedaling. Usually there are multiple power levels you can switch between with a button, and those decide roughly how much of a push you get from the motor, but the power curves are all “hardcoded”. It doesn’t feel great for active riding, but it’s adequate for commuter bikes. Torque sensors are actually kind of expensive on their own.
Seems like a “ohh ebike is becoming big” management decision to somehow do a quick and dirty thinking it would be useful.
Unfortunately ASUS brand is not getting better with these actions.
I have to say, this looks really well designed and easy to use, I want one! But why Asus? I really want to know how they landed on this.
> I really want to know how they landed on this.
RAM prices.
ASUS does make power banks, and the vast majority of the cost of any ebike is in the battery.
"The noise is higher than a conventional e-bike motor and is high-pitched, similar to an RC car, although quieter than some other conversion kits they had tested."
https://www.frandroid.com/marques/asus/3158393_meme-asus-se-...
That might be the easiest ebike retrofit/conversion I've ever seen. I have concerns about the grip in wet conditions but this looks like a great way to get that ebike I've wanted and not put my perfectly good frame to waste.
Similar friction drives have existed for a while. The battery is very small compared to a regular ebike (typically they start at about 300wh.) Also, IIRC the friction drive is not very efficient.
Like when wet. Or icy or both.
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This one is 158 Wh
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Get a Bafang kit or a hub motor replacement rear wheel instead. At least those systems work well.
I mean I agree but those aren't zero-skill install like this.
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Have a look at Bafang or Tongsheng kits
If some of you ever have the occasion to go to the Toyota commemorative Museum, in Nagoya (Aichi), you will find this:
https://www.tcmit.org/english/research/car/car01
This is the last century version of the item that Asus is presenting here... but with a Gasoline engine.
The Engine is fixed on its own wheel and attached on the side of the bicycle.
This was apparently was a thing. It was used to motorize Japan at its industrialization debut.
On century later, electrification is now a thing and the same device is back with a battery. The loop is done.
PS: I do recommend the museum for anybody interested in industries and industrial processes.
If I'm carrying around a giant battery I ought to be able to charge my devices from it, but it is silent on that front.
The design doesn't work if you have a mud guard or pannier rack. Also unclear how easily it is detached. Do I have to take it off everytime to prevent casual thievery? How do I take it off to charge inside? Does it have anti-theft bricking?
I'm struggling to understand who the target market is.
"How do I take it off to charge inside?"
It has a removable battery so it seems the mechanism is designed to be left on the bike.
And if I go into a shop am I compelled to remove the battery, or is it locked? Is there a key or an app to release the battery?
A couple other people here mentioned that theft is an issue. That's yet another reason why folding bikes seemed like the best use case for this. Not as good as a folding bike that's made for being an E bike, but if you've already got a good folding bike and a bit more zip on your commute is what you need, this seems like a interesting product.
Reminds me of https://en.wikipedia.org/wiki/V%C3%A9loSoleX:
*“VéloSoleX is a moped, or motorised bicycle, usually just referred to as 'Solex', […] originally created during World War II and mass-produced between 1946 and 1988, came in various iterations, while keeping the same concept of a motor with a roller resting on the front wheel of a bicycle”*
This powers the back wheel, though. I think that’s better for propulsion but it seems you’re giving up carrying stuff or a child on the back of the bicycle. Can’t even have a rack there with this contraption.
All these sites have hype about AI features like AI Chat. however I use the chat, and it wastes about 3-10 seconds just to load, then I ask for the price, and it fails to understand even the page we were on (edit: "I don't understand what product you're referring to, please tell me the product"). Then I literally paste the page's product from the page into the chat, and it finally wastes my time more and sends a whole essay blob about why it can't tell me the price.
Is this what investors sell to the board about how they are using AI for greater efficiency? Just to waste consumers time even more?
You are not the target audience. The "AI" label is intended to attract stupid people.
I asked for the price too, it told me "you seem to be asking about repair prices, you should go to <other website> instead".
I gave the answer a thumbs up, of course.
It's fashionable and it takes strong leadership to avoid fashionable things even when they make absolutely no sense
I kind of like this. Not because it's necessarily the best way to electrify a bike, but because it's removable enough that your bike can still just be... a bike
It looks like you have to remove your rear fender thought. I would rather just use the rye bread engine a little more, than not being able to bike on wet roads (or being sprayed with mud).
It’s interesting in terms of the economics of development.
This product takes advantage of advancements in lithium-ion battery technology driven by phones and cars, benefiting from improvements in both performance and cost at scale without requiring extensive additional research. Looking forward to trying it.
Everyone is hating but this is a hack and you love to see it.
As a cyclist, I thought this was a joke. Cycling is very efficient mode of transport, if anyone needs this kind of assistance (like those people on the stock photos), they are insanely out of shape.
« This kind of assistance » allow one, even in shape, to go to work by bike in many places where your employer has no shower, or you don’t want to be drenched in sweat twice per day. Not all the word is flat. My work place was 540m elevation lower than my house, and before good electric bikes it was quite hard do that by bike.
Wait until you hear how many people drive a car every day.
But less facetiously: there are large demographics that might ride bicycles more if it was slightly easier for them, including older people and people with mobility issues. I don’t have opinions particular to this product, but expanding the feasibility of cycling seems like a generally good thing to me.
Do you live where it’s mostly flat?
I remember those from 50 years ago. Back then it was a small petrol engine typically mounted on the front tyre. https://en.wikipedia.org/wiki/V%C3%A9loSoleX
incredible that this got green lighted, it's just an inferior version in every way to many other products on the market
The friction-drive approach is interesting, especially at 3.7 kg. I’d be curious how the drive wheel affects tire wear and performance in wet conditions over time.
I just bought a Boost conversion kit from the UK and am excited to install it in a couple weeks. If anyone has installed this kit would appreciate a comment on the experience.
(I'm in the US and have been unimpressed with the kits available here. The Boost one looks compact and well designed).
Seems like an odd pivot, have Asus made any other (successful) non-computing products before?
Hah, my dad made something like this for me when I was a kid using a weed eater engine, with a makeshift lever as a clutch to engage/disengage it. This looks about as makeshift, I wouldn't trust it for serious use.
Reminds me of the best mechanic class in high school we were just five guys and the teacher let us rebuild two old velo solexes.
It looks very stealable, which is amusing given "boost" is slang for "steal".
This would be great to add to my 9 year old's bike. We couldn't do long bike tours anymore because he would stop biking after 100m, telling is he is completely exhausted and must go home. I was looking for something like this!
A follow-me tandem (which couples a kids bike to your bike) is a much better solution than giving a 9yo a poorly controlled motor.
I’m pretty sure I’d have preferred a poorly controlled motor over staring at my dad’s ass at 9 years old. Luckily we didn’t have either, we used a dog leash for towing.
Yes, we already have this (Follow-Me - the swiss company). However, my 9yo and his bike is too heavy for that. I was able to carry/drag his bike from about 3y till about 6yo.
No it's not, it teaches the child dependence on the adult instead of giving the child agency.
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Their slogan should be “Reinventing the wheel” and then apply the device to all kinds of stuff
Excellent unless you have a mudflap in your back wheel in countries where it rains.
There used to be a few products like this in the early 2000s. Not a new idea at all.
> Oxiis is a universal, friction-drive motor system that transforms any conventional bicycle into a smart e-bike. Its name fuses the Greek Oxis (agility) and Axis (pivot)—perfectly reflecting how its high-performance drive core delivers ultimate acceleration and instant, nimble responsiveness right to your ride.
This sounds like LLM-generated to me, but I find it difficult to point out why.
Maybe the em dash and the fact that it says "its name" instead of "it's name"..? :-D
Seems like normal text to me, I don't think we need to scrutinize every sentence, now. Who cares if they used AI?
Similar things are on amazon today 300-500. Not worth it imho. If you are going to keep it on, convert your bike with middrive or hub motor once.
People really owe it to themselves to try an ebike from an recognised road bike brand. They've been at it for a decade or so now, and even early 20's efforts are a different class in terms of riding experience, refinement and practicality.
Summers ending, watch your bike dealers for deep discounts!
Would it make a seat tube a load bearing here? I imagined setting it up on a carbon bike
Since no one can afford ram, they had to find other markets?
The web page doesn't seem to load correctly in the Safari browser for macOS 26. Seems like something they might want to fix.
It feels like a great product but targeted at a surprisingly transient customer base.
The cycling guys won't buy it, they want the watts from their legs.
The commuters will just get an ebike eventually.
The getting started crowd will eventually become one of these 2 or stop riding a bike altogether. Since I didn't see how much this cost, if it cost as much as a commuter bike, I really don't know who would buy something like this.
Been burned, can confirm every word
No price. This is just sensing the market, i doubt the have anything other than a dirty PoC
Haha, I like all these adapter designs though my favourite was the Copenhagen Wheel[0]. I saw someone ride one near Mission and S Van Ness and loved it. Sleek device. This particular one in the OP is definitely built for safe societies, right? Definitely not for the North American market, haha!
0: https://en.wikipedia.org/wiki/Copenhagen_Wheel
Basically, the Copenhagen Wheel moved all the complexity of setting up a hub motor drive system - motor, battery, controller, sensors, computer - into the hub shell itself.
Which made it seem neat and clean, but meant it had serious reliability issues, couldn't handle wet conditions[], wasn't really repairable, and was expensive compared to more reliable alternatives with better battery life, etc.
[] The manufacturer apparently stated that "[...bad bearings] can occur when the Wheel is repeatedly exposed to wet conditions. Due to the nature of the problem, this cannot be repaired": https://forums.electricbikereview.com/threads/known-issues-p...
Psst, you can escape an asterisk [*] with a backslash.
Hub gears work quite well though don't they? In particular respect of being sealed and protected from the weather. Unclear why there's an opposite effect for this wheel.
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It went on sale in the US before the EU. Did you even skim the wiki page you linked?
I see. The way I spoke made it seem like I was talking about the Copenhagen wheel with the phrase “this particular one”. I was talking about the OP device. Obviously since Mission and SVN is in the US I would have assumed it was not the CW but I can see that I was unclear so I have clarified. The Copenhagen wheel is pretty integrated. This one is a thumb screw and off you run with a valuable battery. I wouldn’t buy it here and I bike every day in the city.
People who don’t bicycle in North America won’t quite get it. It’s not exactly Taiwan. Theft is rampant and it’s societally sanctioned in most major cities.
Where is the buy now button in that page ?
Gonna be stolen from any parked bike in the UK…
10 km Sports and 50 km Eco range is a no go. Plus they explicitly deny carbon fiber bikes, bikes with suspension, and tire choice is rather limited. You could've invested in a decent trekking bike with a standard motor instead, at least you get that hind wheel storage space free.
Is it compatible with the AMD mountain bike?
No price. No order form. No delivery date. Vaporware.
Come on, ASUS. You're a real company, not some kickstarter scam.
Their AI bot is just as grim
Me: when's the bike booster available to purchase?
ASUS AI: For the most accurate and up-to-date product release information, we recommend following our Facebook and Instagram channels. We share all our launch announcements there first, along with exciting product previews.
Hilarious advice given both Meta products are notorious for not showing everything from the accounts you follow.
Is ASUS trolling to see if there is a market for the thing? If they were serious, it would be in WalMart at $279.95.
If you want something like this, there are very similar items on Amazon, Alibaba, etc.[1]
[1] https://www.alibaba.com/product-detail/Mountain-City-Road-Bi...
I love bicycle tech. Almost everything was invented in the 1890s, and every couple of decades someone tries another old idea.
https://onlinebicyclemuseum.co.uk/tour/cyclemotors-motorcycl...
> Almost everything was invented in the 1890s, and every couple of decades someone tries another old idea.
What about wireless shifting systems like Di2?
> wireless shifting systems like Di2
Is it really wireless?
The SRAM one is.
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would be better if there is an option for manual wired buttons to engage/disengage the booster positioned on the handlebars
So ah, can we buy it? What's the price? Not seeing unless ad blockers are hiding something.
According to articles like this one[0], they haven't shared pricing yet - so I guess it can't be bought quite yet.
[0]: https://www.digitaltrends.com/outdoors/asus-made-an-e-bike-c...
> Motor Power 250W (Rated) / 500W (Peak)
A 4090's TDP!
Am I missing something or that thing can be trivially stolen?
Bicycles in general can be trivially stolen.
FUD. Cars in general can be trivially stolen if you don't lock them. Lock your bike and it can't be trivially stolen.
The problem here is this device can be easily removed even from a locked bike, and it itself cannot be easily locked to the bike.
Fenders, anyone
Why model names for consumer electronics are so stupid? E250G1. Wtf. or have you seen what bosch siemens morons come up with, like ki96nvfd0?
what about my mud-guards?
I absolutely would not give up my double panniers and rack. I put a small Tom Bihn Bag "Daylight Backpack" with my laptop in one, and the bike charger and food and other junk in the other, empty my pockets into the zipper bag, and then I'm totally unencumbered for riding and have unlimited distance since I can plug in and charge the battery if it gets low. Riding with a backpack on my back or even stuff in my pockets is a drag. The panniers are also great for grocery and other shopping.
https://www.tombihn.com/products/daylight-backpack
How do these things work legally? Wouldn't the bolt on process count as manufacturing or modifying a motorcycle, depending on where you are?
In the USA, there are more than 52 jurisdictions not including towns and cities and counties, but most (not all) states think of ebikes as being slightly restricted bicycles rather than motorcycles, as long as:
- they have functional pedals (otherwise it's a motorcycle of some kind)
- they require pedal assist at all times and have some kind of power or speed limitation (anyone can use this, or at least it is least restricted)
- they have pedal assist available and have a different, higher power or speed limitation (usually reserved for 16+ or something similar)
- they have a power or speed limitation that makes them suitable for adults only but doesn't require a driver's license or inspection
There are efforts to regularize these, and also efforts to make things more chaotic. For example, New Jersey decided that all ebikes require a new ebike license and vehicle registration. Across the river in New York, no ebikes require a license or registration, and may be operated on any street which has a 30mph speed limit or less... but cities are allowed to make their own rules.
California's laws are mostly regarded by bicyclists as being sensible, at least in every discussion I've seen that didn't feature a twelve year old trying to convince his parents to buy him a 70mph electric motorcycle. See https://thecyclistchoice.com/resources/california-ebike-laws...
They should require insurance at least. An ebike can cause serious injury to a pedestrian.
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In most jurisdictions it's only a motorcycle if it can exceed a certain speed or has a motor over a certain power in kilowatts. Or some combination of both.
recent news: https://www.bbc.com/news/articles/c89nyk4pz74o
There's no restriction on manufacturing e-bikes anywhere that I know of, as long as they obey the speed/power limits. (That's why it says 500W "peak" power - the continuous power limit in the UK at least is 250W but manufacturers just make the "peak" last for a very long time.)
For a second I thought it must be April Fool’s Day.
They should turn it into a phone lan gaming platform with dedicated games. That would make it instantly awesome.
I totally thought this was about bike theft.
easy on, easy off, easy to fence.
I see winter version of this. You need custom roller with holes for a particular stud pattern. So there is no slipping and no tire wear. And maybe the roller is made of metal so the snow does not stick to it.
If I bought this I might want a brake upgrade. Even though it probably provides only about 150W (I always assume ebike power ratings are inflated), the extra weight alone warrants disc brakes IMHO.
When I see obvious out of shape ebikers passing me uphill while barely moving their legs, I’m assuming that the power rating of their ebike is about right and the torque curve might be weird to stay legal.
I agree that rim brakes on an e-bike is extra bad.
making a regular bike an e-bike is not too hard as long as caliper brakes and not disc
just replace the front wheel
I did that 20 years ago with a brushed motor and wow that thing had torque, could go up the steepest hills at speed no matter what I was carrying
They aint new. I had one that was driven by a honda gx35 4 stroke
there was another company named "bee" something that did these (gas as well 2 stroke)
and many early scooters, conversions, that all followed the friction style
some bike vendor told me that the biggest problem with regular to ebike conversion was that regular bike frames were not strong enough to support the additional forces that the electric bike imposed. And it was why the ebikes were much heavier than regular bikes.
Does anyone know if that’s true and if that applies to conversions like this one?
It's less of an issue for this device. The reason is that the motor is further from the axle than a hub motor would be. Thus, there's less force on the frame for a given amount of torque.
A lot of extra force when slowing down from faster speeds though, no matter where the motor is added.
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Depends on the bike and motor combo. Something like a mountain bike from the last 20 years would be fine, but I wouldn’t try and put one on like a road bike from the 70s or something. Basically anything that’s well built sturdy steel is going to be ok with the common sub kilowatt motors, but there are like crazy ones that will output considerably more power than that.
Also that’s going to be more applicable with a mid drive or a hub motor than something like this.
Interesting point. That might be the only thing this thing has going for it self. The angle of force is perfect even for the most fragile frame.
Weight
3.7 kg (including battery)
Cycling product announcement as we enter the last two weeks of summer, LOL.
i have a folding cycle and a fat bike. my only two devices still analog and keep me reasonably fit. i dont wanna e-bike them. but if i wanna long distance, this could be nice.
It only gives a boost for 50km.
then charge how many hours?
This might be the dumbest thing I've seen this.. well.. week tbh. Don't you guys have mud guards?
disappointed to see no tire brand listed as a partner or sponsor
lol. A friction drive in current year?
not really interested in this weird thing, but does anyone know what kind of bike is in the top picture? steel frame, machined brake calipers, really looks very attractive and light for a commuter.
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These suck, just buy an e-bike they are awesome.
These would be great for many places that have storage restrictions on e-bikes, but not normal bikes. So you can easily detach and bring with you before storing it.
The idea of being able to quickly switch a bike back and forth between a regular one and an e-bike seems cool. They lost me at the "smart" though...
any particular one you recommend in usa
my costco has magnum melody
Specialized Vado SL 5 would be my entry level. But anything with a Bosch/Shimano Steps/Giant (same mfr as Specialized) mid-drive. Smooth as butter, and these brands still ride like a normal bike.
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Pretty nice bike. I bought a Evelo with a belt drive and a automatic CVT transmission that is really nice to ride.
Anything for the world to actually avoid the health benefits of riding a bike. What is wrong with a standard human powered bike? I expect a global obesity epidemic in 10 years as people begin buying/building WALL-E-style beds.
People with knee problems, areas with hills. An ebike is still active movement; sure you're not getting any cardio, but it's immeasurably better than driving. If this (or any ebike) is a thing that gets someone on a bike that otherwise wouldn't be on a bike, it is a good thing. For some it might be a stepping stone, for others it allows them to ride where they can't/won't ride at all.
I also noticed that some people who used to pedal switched to e-bikes due to laziness.
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https://www.sciencedirect.com/science/article/pii/S259019821...
"Physical activity gains from active travel are similar in e-bikers and cyclists."
E-bikes make people who aren't fit enough to ride muscle powered bikes to start doing moderate exercise on local trips they would used cars for before.
How can they be the same? One requires much more physical effort. That sounds like junk science. Perhaps they are similar type of gain but the difference in actual result must be a canyon wide.
Following a heart attack, I got a pedal assist, I got hundreds of hours of exercise and outdoors. You always are exercising, just lightly, and you can adjust your input level upwards at will. Brake fluid issues got me back onto my push bike this week. It's different - there's definitely more effective strength training going on in accelerating and climbing hills. Otherwise, it's not THAT much of a difference. I just go slower. 10 mph rather than ~15.
Found the person who lives in Kansas. Sometimes I just want to ride to work without having to deal with that 2km hill on the way. And my bike is still human-powered, with electric assist. Do you not know how e-bikes work, perhaps?
Signed, former Cat 2 road racer
I have ridden a pedal assist ebike and the amount of push I apply to a pedal is 100x less effort than I would to a standard bike. There is no way the physical benefits are remotely the same. Good for you for avoiding exercise though. Also I live in Brooklyn with plenty of long hills. I also have plenty of friends with ebikes here who swear by them like you do. They struggle with health issues related to physical activity. Obviously having some sort of engine, pedal-assist or not is convenient but do you really understand the cost. You might as well drive and move the non-gas pedal foot up and down for the same benefit.
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> Do you not know how e-bikes work, perhaps?
I suspect not. Even though ebikes are common now, I often hear this comment. Ebikes assist your pedaling; they don't pedal for you. (Well some can pedal for you but you learn quickly that if you let the motor do all the work you'll run the battery down and then you will have to do all the work pedaling a 65-lb bicycle home.)
Lots of people seem to think if a motor is present, then the motor is doing all the work. Ebikes are not motorcycles. What the motor actually does is make the hills less steep and less long. It's a lowpass filter for terrain.
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