SRAM XX Ebike Crank Arm Set - 165mm ISIS Black. The XX Eagle E-MTB Crank takes from its race-winning lineage and is optimized for E-MTB use. Carbon fiber engineered with a foam core to give both incredible strength and maximized stiffness under the high torque environment of E-MTB. Paired with the new XX Eagle Transmission (T-Type) direct mount chainring performance and design aesthetic blend together to provide our most premium performance driven crank arm.

Carbon with foam core provides light weight with maximized stiffness