The SRAM 1X-Sync Direct Mount Chainring is the only one you need: less weight, better chain control and the ability to sync up with any riding style. Our 1X drivetrain philosophy focuses on optimizing how components work together. A crank to ring, tooth to chain, shifter to derailleur, derailleur to cassette, and cassette to wheel. No matter where you ride, no matter what youre up against, SRAM 1X takes you further. SRAM 1X-Sync Direct Mount Chainring Features Fully CNC'd aluminium Compatible with XX1 and X01 30T