The XX1 Eagle Fat Bike DUB crankset has been re-examined and re-engineered. Featuring SRAM's DUB technology this design simplifies the relationship of the spindle to the bottom bracket. DUB-powered cranksets mean simplicity compatibility and durability.SRAM DUB technology creates a lighter stiffer and stronger cranksetCarbon-tuned lay-up crank design provides extreme stiffness and light weightIncluded direct mount X-SYNC 2 chainring provides significantly quieter performance with better mud clearing and durabilityChainring is designed specifically for Eagle chains and drivetrainsDUB compatible bottom bracket sold separatelyFat bike frame compatible