• Revolutionary innovation • Performance that is simply unmatched • Achieve the best ride • The Descendant 7K crankset offers consistent performance every time you go out • With the SRAM X-SYNC2 tooth profile chain, designed for complete chain control • The thickness of each tooth is precisely tolerated and controlled to run smoothly • SRAM DUB technology with a better-designed bottom bracket and a new spindle design • Better sealing against contamination and forward and backward compatibility • Compatible with the SRAM Eagle Drivetrain system • Optimized benefits of the 7000 series forged aluminum arms