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 we’ve 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 Attributes BCD Direct Mount BB Inclusion No Chainline 55mm Teeth 32 Crank Spindle Diameter 28.99mm Interface DUB Crankset Material Carbon Pedals Thread 9/16'' Primary Color Black Speed 12 Drivetrain Spacing Boost