Race Face Aeffect R Crankarms

The Aeffect R eMTB crankarms are designed to work with ISIS and ETOR bottom bracket interfaces. Before purchasing, verify that your motor system utilizes one of these two standards.

The 180mm Q-factor is specifically engineered to accommodate the wider motor housings found on most eMTB systems. This width ensures your feet maintain a natural, ergonomic stance while pedaling, preventing interference with the motor casing.

These are built specifically for the higher torque loads generated by electric motors. They use high-strength 7050 aluminum to handle that extra stress while maintaining a weight of 485g, striking a balance between durability and performance.

Yes, the Aeffect R features optimized ground clearance. By refining the profile of the crankarm, Race Face has reduced the likelihood of striking rocks or roots when navigating uneven, technical terrain.

The crankarms come with pedal washers included. However, you will need to ensure you have the correct tools for your specific bottom bracket interface, such as an ISIS crank puller if applicable to your motor system.