The Wolf Tooth 110 BCD Asymmetric Chainrings are designed for use with Shimano GRX cranks. Chainrings feature Wolf Tooth's patented Drop-Stop design for the best wear life chain retention and mud clearance.Compatible with Shimano GRX cranksets including RX600 and RX810Drop-Stop chainrings are designed for use with 1x9 1x10 1x11 and 1x12 drivetrainsDrop-Stop FT is compatible with all 10- 11- and 12-speed chains (including SRAM Flattop 12-speed chains) with the exception of Shimano 12-speed chainsShimano 12-speed chains require the use of Wolf Tooth's Shimano 12-speed specific chainringsIf using a 9-speed drivetrain use a 10-speed chain which will provide a tighter fit for better chain retentionUse of a clutch-style rear derailleur is recommendedMade from 7075-T6 aluminum for long life