Wolf Tooth Direct Mount Chainring - 30t, RaceFace CINCH Direct Mount, Boost, 3mm Offset, Drop-Stop ST, Requires 12-SpeedThis chainring's tooth profile was developed specifically for Shimano's XTR 12 speed Hyperglide+ chain. Compatible only with Hyperglide+ 12 speed chains For use with any RaceFace CINCH crankset Maintains quiet and smooth performance of the Hyperglide+ drivetrain with exceptional chain retention Prevents premature ring and chain wear that can come from non optimized profiles Item Specifications Defined Color Black Direct Mount Type Direct Mount CINCH