Comment by rconti

4 years ago

Even at 4.25w/kg I cannot hit 30mph without a tailwind or a downhill. I can push MAYBE 26mph, possibly 27. And that's going to be at something unsustainable for me, like 400-500w. (FTP of 350w).

At threshold power, I'm guessing more like 22-23mph.

And, not to toot my own horn, but that's a pretty damn fit experienced cyclist.

Ah, but you should be able to hit it while drafting with aero bars.

My point here is that it's not the bike that makes you go 40mph - it's the "engine" (the human) and the environment. Expensive human-powered bikes aren't going to magically turn someone who tops out at 20mph into someone doing twice that.