12 Good Reasons If you're looking for a bomber new chainring that can run with your Shimano 12 speed drivetrain, then look no further. This direct mount ring has the versatility of RF CINCH integration and the stiffness to turn all your "push" into straight-up "go". Built to Last Created from 4mm-thick 7075-T6 alloy plate for big-time stiffness and strength. Its NW tooth profile is Shimano 12-speed specific and provides secure chain retention All-Round Performer The Race Face CINCH interface makes this direct mount chainring fast and easy to swap for different sizes to customize your Shimano 12-speed drivetrain. - Compatible with Cinch Direct Mount Cranks - 7075 Aluminum - Direct Mount