The SRAM NX crankset delivers Eagle™ styling & performance to the newest addition to the Eagle™ ecosystem. Designed for SRAM's X-SYNC™2 chainrings, the NX crankset is engineered for complete chain control-each tooth's profile is precisely engineered to work quietly, efficiently & securely with the Eagle™ chain's inner & outer links. DUB™ technology features a better-engineered bottom bracket & a new spindle design, which together allows 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 performance & durability. Key Features Eagle™ technology provides an expanded, optimum, gear range making you fast on the flats, giving you control on the climbs & unleashing your speed on the descents.6000 series forged aluminum arms DUB™ technology features a uniform approach to bottom bracket fitment, better sealing against contamination & is forward & backward compatible.ISO 4210 compliant. See Declaration of Conformity for details Eagle™ is a complete drivetrain system that was developed to be an integrated high-performance ecosystem. The engineering & testing that went into the development provide for maximum performance, safety, & 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.