Wolf Tooth - Drop-Stop Chainring: 28T x 64 BCD

These ingenious rings allow you to run a 1x setup on a 104/64 crank with a tooth count lower than 30T while providing chain retention courtesy of Wolf Tooth&';s Drop-Stop chainring tooth proifle. Features Made from 7075 Aluminum for long life Features Wolf Tooth&';s Drop-Stop tooth design for maximum chain retention Optimized for use with 10, 11, and 12 speed chains or 10 speed chain Not compatible with 9 speed chains Chainline ranges from 46mm to 48mm depending on the cranks used Specifications Manufacturer Part Number: 6428 Color: Black Material: Aluminum Tooth Count: 28 Ring Position/Type: Chain Retaining Single Ring Drivetrain Speeds: 10 , 11 , 12 Chainring BCD: 64