The SRAM GX Eagle™ 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 & controlled to work seamlessly with the chain's inner & outer links. DUB™ technology features a better-engineered bottom bracket & a new spindle design. Together, these allow for a more uniform approach to bottom bracket fitment, better sealing against contamination & forward & backward compatibility. Now everyone can benefit from a new measure of durability. Features & Benefits Optimized 7000 series forged aluminium arms DUB™ technology features a uniform approach to bottom bracket fitment, better sealing against contamination & is forward & backward compatible. Direct mount ring ISO 4210 compliant. See Declaration of Conformity for details.