The ebikes you don't have to plug in. Recharge by spinning and get a workout tracked with a powermeter. Charge any battery from 10-50v. Possibly the first multispeed regenerative braking mid drive ebike. Spawned from a steam engine generator project.
https://makerfaire.com/maker/entry/66242/ Today and all weekend.
Rear brake delete
Fixed 9 speed
Upper chain tensioner
Lockable motor freewheel