Comment by Sn0wCoder

Not sure where you are located but they already do have this. I have a class one pedal assist which cuts out at 20 mph. Allowed on most Mnt bike trails and to do 20 for any amount of distance requires substantial effort. I get passed on the paved bike trails all the time by road bikes with way more gears. Then class 2 which has a throttle and can go 30ish. Then class 3 with a throttle and speed is essentially whatever you can do. 2 and 3 are not allowed on any Mnt bike trails and depending on city, county, are crazy to ride on the paved bike trails, not legal, but do see every now and then. Most people that own them respect the rule.