SRAM GX Eagle Crankset You can count on the SRAM GX Eagle Crankset for consistent performance every time you head out for a ride. They feature SRAM's X-SYNC 2 tooth profile chainring for complete chain control no matter the terrain or riding conditions. Each tooth's thickness is precisely toleranced and controlled to work seamlessly with the chain's inner and outer links. DUB technology features a better-engineered bottom bracket and a new spindle design. Together, these allow for a more uniform approach to bottom bracket fitment, better sealing against contamination and forward and backward compatibility. Features Optimized 7000 series forged aluminum arms -The right amount of stiffness and performance Fully compatible with any SRAM 1x drivetrain DUB technology features a uniform approach to bottom bracket fitment, better sealing against contamination, and is forward and backward compatible Specs Crank Arm Length 170mm, 175mm BB Spindle Interface DUBBB Compatibility DUB:BSA73, PF89. 5, PF92, PF30 MTB73, BB30 MTB73, BSA MTB68SPSpeeds 11/12Chainring Material Aluminum Bolt Center Diameter(BCD) Direct Mount (DM)Chainline 52. 0mm Chainring Size 32T | Sram | Gx Eagle Crankset | Lunar | Boost, 175Mm, Dub Spindle, 32T | Aluminum