The Sram GX Eagle X-Sync DUB Crankset delivers consistent performance every time out. Featuring SRAM's X-SYNC™2 tooth profile chainring, the GX crankset is engineered for complete chain control. 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. Now everyone can benefit from a new measure of durability. Sram GX Eagle X-Sync DUB Crankset Features Eagle™ technology provides an expanded, optimum, gear range making you fast on the flats, giving you control on the climbs and unleashing your speed on the descents. Eagle™ is a complete drivetrain system that was developed to be an integrated high-performance ecosystem. The engineering and testing that went into the development provide for maximum performance, safety, and long-term durability to ensure a great consumer ride experience. We guarantee this performance when Eagle™ drivetrains are used as a complete ecosystem. For additional information, please contact your SRAM Sales Contact. Optimized 7000 series forged aluminium arms DUB™ technology features a uniform approach to bottom bracket fitment, better sealing against contamination and is forward and backward compatible. Direct mount ring ISO 4210 compliant.