SRAM GX Eagle Dub Fat Bike 4" CranksetWe introduce you the all-new SRAM GX Eagle Dub Fat Bike 4" Crankset. It features SRAM's new DUB(TM) technology, which is a reinvented spindle design that provides you with compatibility with all major bottom bracket standards. It also allows for a more uniform approach to bottom bracket fitment, better sealing against contamination and forward and backward compatibility. Together along with the X-SYNC(TM)2 tooth profile chain ring, you will gain complete control and superior performance no matter where you decide to ride.FeaturesOptimized 7000 series forged aluminum arms: The right amount of stiffness and performanceDUB(TM) technology:features a uniform approach to bottom bracket fitment, better sealing against contamination and is forward and backward compatibleFat bike compatibility:fat 4SpecsArm material: 7000 series forged aluminumChainring material: aluminum cold forged eagle(TM)Weight: 621g (175mm, 32t)Available arm lengths: 165mm, 170mm, 175mmCompatibility: all levels of eagle(TM) drivetrain systems, all major bottom bracket standards.Bolts: direct mountRecommended chain eagle(TM) chain onlyTechnology highlight(s): X-sync(TM)2, boost(TM), eagle(TM)Options: boost(TM), fat 4, fat 5 | SRAM GX Eagle Dub Fat Bike 4" Crankset Black, 175, 30, No BB