Carbon fiber engineered with a foam core to give both incredible strength and maximized stiffness. Now pair it with the remarkable new XX Eagle Transmission (T-Type) direct mount chainring, and the spotlight turns from its performance to its appearance, because it absolutely looks like nothing weve ever seen before. The XX Eagle Transmission crank also features first-of-its-kind removable and replaceable bash guards that riders will appreciate.* XX Eagle Transmission Crank: Carbon with foam core. Light with maximized stiffness.* XX Eagle Transmission Chainring: Stunning, never-before-seen look. T-Type compatibility and a removable bash guard.* SRAM Model ID: FC-XX-D1