Fits the flowing lines of the XTR M985 Race Crankset, this chainring looks like an original equipment replacement while keeping your chain in check. Featuring the patent pending Drop-Stop asymmetrical tooth design for the best in wear life, mud clearance, and chain retention. Optimized for use with 10, 11, and 12 speed chains. Not compatible with 9 speed chains. Made from 7075 Aluminum for long life. Features Wolf Tooth’s Drop-Stop tooth design for maximum chain retention. 50mm chainline. Color: Black. Material: Aluminum. Chainring BCD: 88. Defined Color: Black. Ring Position/TYPE: Chain Retaining Single Ring. Drivetrain Speeds: 10. Drivetrain Speeds: 11. Drivetrain Speeds: 12. Tooth Count: 32.