Our Aeffect R eMTB cranks bring the burly, purpose-driven design of Aeffect R to light-assist and full-power e-bikes. While they are designed for rowdy, power-down riding, the 485g weight puts them among the lightest alloy eMTB cranks on the market.
Purpose-built for Bosch Gen4 drive system for seamless motor integration
Optimized 180mm Q-Factor maintains motor and frame clearance while delivering pedalling ergonomics and feel of regular Race Face mountain bike cranks
160/165/170mm crank lengths that are trimmed to length for improved ground clearance on shorter sizes
444 grams arm weight among lightest alloy e-MTB cranks helps reduce overall bike weight
Pair with Steel DM Bosch G4 Ring for perfect integrated styling
Compatible with Bosch Gen 2 – Performance Line, Bosch Gen 4 – Performance Line CX / CX Race, Bosch Gen 5 – Performance Line CX , TQ HPR50
