The motors tend to be hub- or mid-drive systems ... for use with an open source motor controller. The bike in use here is a model called the Curt from Estonian ebike builder Ampler, which is ...

The “Spin Cycle” is an amazing electric bicycle ... utilize hub motors). The crank has also been specially modified to include a freewheel, a necessary feature so that the motor can operate ...

Urtopia's 3D-printed titanium e-bike is gorgeous, light and, best of all, comes with a tiny mid-drive motor buried in the ...

Recently, I rode a fairly radical e-bike to a meetup with some friends ... For hill climbing, the rear hub motor can increase output to 1,310 watts for short periods. My review bike weighed ...