SRAM XX T-Type Ebike Crank Arm Set - 165mm, ISIS, BlackThe 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