Raceface Aeffect R eMTB Crank Arm 170mm BCD: Direct Mount Black Set CheckoutSpec= 10 sp. 11-42T 8mm rise +/-8 deg length

8mm rise +/-8 deg length 30mm color turquoise

High quality mesh against your lower back prevents sweating and discomfort

steep terrain

thanks to Rex Dual compound materials

(1) 10mm and (1) 20mm color red package set/4

Raceface Aeffect R eMTB Crank Arm 170mm BCD: Direct Mount Black Set CheckoutSpec= 10 sp. 11-42T 8mm rise +/-8 deg lengthRaceFace 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 TECH SPECS Color Black