Raceface Aeffect R eMTB Crank Arm 170mm BCD: Direct Mount Black Set

RaceFace Aeffect-R Ebike Crank Arm Set - 170mm For Bosch Gen4 Drive System 7050 Aluminum Black. The RaceFace Aeffect R eMTB cranks bring the burly purpose-driven design of Aeffect R to the Bosch Gen 4 Performance Line CX drive system for seamless motor integration.

Optimized for use with Bosch Gen 4 Performance Line CX drive systems

Compatible but not optimized for use with Bosch Gen 2 drive systems

Constructed of 7050 Aluminum