Direct mount rings designed for use with cranks that utilize their 3-bolt mounting style. This premium 7075-T6 Aluminum Alloy chainring is equipped with the patent pending Drop-Stop asymmetrical tooth design for the best in wear life, mud clearance, and chain retention. 3mm offset is designed for boost cranksets (52mm chainline). Drop-Stop chainrings are designed for use with 1x9, 1x10, 1x11 and 1x12 drivetrains. Compatible with all 10-, 11-, and 12-speed chains, with the exception of 12-speed chains. 12-speed chains require the use of Wolf Tooth's 12-speed specific chainrings. If using a 9-speed drivetrain, use a 10-speed chain, which will provide a tighter fit for better chain retention. Not compatible with the 8-bolt interface. Made from premium 7075-T6 aluminum for durability and weight savings. Use of a clutch-style rear derailleur is recommended. Item Specifications: Tooth Count: 32, Drivetrain Speeds: 9, Drivetrain Speeds: 10, Drivetrain Speeds: 11, Drivetrain Speeds: 12, Round or Oval: Round, Offset: 3, Material: Aluminum, Color: Black, Defined Color: Black, keyword search: T-Type, keyword search: Transmission, Direct Mount Type: Direct Mount 3-Bolt,