Crank Compatibility Optimized for Bosch Gen 4 | Compatible but not optimized for Bosch Gen 2
Available Arm Lengths 165mm, 170mm, 175mm
Includes Pedal Washers (Chain Rings & Bottom Brackets sold separately)
Crank Arm Material 7050 Aluminum
Weight Conditions 165mm Arms Only (E-Bike Cranks)
Race Face Aeffect-R e-mtb crankarms
Smooth-pedaling ergonomics in an extra-burly eMTB build.
Our Aeffect R eMTB cranks bring the burly, purpose-driven design of Aeffect R to the Bosch Gen4 drive system. While they are designed for rowdy, power-down riding, the 444g weight puts them among the lightest alloy eMTB cranks on the market. Pair with a Steel DM Bosch G4 ring for the perfect integrated styling.