This unique design is forged from aluminum for robustness and dependability without compromising weight. Select E-MTB motors pair with our GapCap for an aesthetically pleasing integrated look. Key Features:•150mm, 155mm, 160mm, 165mm, 170mm E-MTB lengths • Compatible with new Bosch CX BDU38 system equipped bikes •Crank arm GapCap removable for compatibility with other ISIS spindle-based motor systems
