SRAM X01 Eagle Crankset - 175mm 12-Speed 32t Direct Mount DUB Spindle Interface Lunar/Polar C2SRAM X01 Eagle Crankset 175mm 12 Speed 32t Direct Mount DUB Spindle Interface Lunar Polar C2. The X01 Eagle crankset is designed to be tough; ready for aggressive Trail and Enduro riding. The Carbon tuned crankset features 1x components engineered for greater durability and performance. SRAM DUB technology creates a lighter stiffer and stronger crankset Carbon tuned lay up crank design provides extreme stiffness and light weight Included direct mount