The Wolf Tooth 110 BCD Asymmetric Chainrings are designed for use with GRX cranks. Chainrings feature Wolf Tooth's patented Drop-Stop design for the best wear life, chain retention, and mud clearance.Compatible with GRX cranksets including RX600 and RX810. The Drop-Stop FT tooth profile is designed to work with all 10 and 11-speed chains, and also with 12-speed SRAM Eagle, SRAM Flattop, and KMC chain. Drop-Stop design provides the ultimate chain retention and mud shedding ability. Not compatible with 12-speed Hyperglide+ chain. Item Specifications: Tooth Count, 38, Ring Position/Type, Chain Retaining Single Ring, Drivetrain Speeds, 10,11,12, Chainring BCD, 110 Asymmetric, Color, Black, Defined Color List, Black, Material, Aluminum, , , , , , , , , , , , , ,.