Delivering a sleek and rugged solution for modern e-bikes, these forged aluminum crank arms provide exceptional structural strength and dependability on the trail. The optimized design keeps weight to a minimum while easily managing high torque loads. For a clean, integrated appearance, certain electric mountain bike motors can be paired with our GapCap to perfectly finish the look.

• Engineered to fit motor systems from SRAM Powertrain and Brose
• Built for seamless compatibility with standard Bosch drive units
• Optimized specifically to fit the latest Bosch CX BDU38 e-bike platforms
• Features a detachable crank arm GapCap, allowing easy adaptation to alternative ISIS spindle-based motor configurations