It’s not speed so much as torque. Class 3 ebikes ate already pushing the limit. You have to be careful with part selection, and tolerances on derailier adjustment is tighter.
And brakes. Then it is a matter of speed. You just need bigger parts to take more heat so you don’t get brake fade. It’s why anything more than a class 3 needs scooter/motorcycle parts. If they don’t, run away.
Psythik@lemmy.world 4 weeks ago
As someone who has built several eBikes, you can easily bypass the pedal assist limiter simply by not installing it. Connect the control box to the throttle and nothing else (except the battery, of course). Now it’ll behave just like a motorcycle. Press the throttle to go, let go and hit the brakes to stop. Nothing will prevent the throttle from cutting out other than your own hand.