Wolf Tooth -
This chainring's tooth profile was developed specifically for Shimano's XTR 12-speed Hyperglide+ chain. Compatible only with Hyperglide+ chains For use with Shimano XTR M9100 series cranksets 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 Wolf Tooth Direct Mount Chainring - 30t, Shimano Direct Mount, For Boost Cranks, 3mm Offset, Requires 12-Speed Hyperglide+ Chain, Black Round or Oval: Round Material: Alloy Chainline/Hub Compatibility: 141/148 Boost Hubs Direct Mount Type: Direct Mount Shimano Tooth Count: 30 Drivetrain Speeds: 12 Defined Color: Black Offset: 3 Wolf Tooth Direct Mount Chainring - 32t, Shimano Direct Mount, For Boost Cranks, 3mm Offset, Requires 12-Speed Hyperglide+ Chain, Black Round or Oval: Round Material: Alloy Chainline/Hub Compatibility: 141/148 Boost Hubs Direct Mount Type: Direct Mount Shimano Tooth Count: 32 Drivetrain Speeds: 12 Defined Color: Black Offset: 3