We reported how Full Speed Ahead (FSA) had developed a hub motor, the FSA System HM 1.0, back in 2019. It is now available to bike frame producers for use on electric road and gravel bikes.
The system comprises a rear hub electric-assist motor, a 250Wh battery unit, an additional 250Wh expansion battery, and an integrated on-bike control unit.
The whole setup is said to tip the scales at 3.98kg – so it’s pretty lightweight.
We’ve got full details and more pics over at road.cc.