These chainrings are for Shimano GRX cranks. They feature our patented Drop-Stop design for the best wear life, chain retention, and mud clearance. The newly updated tooth profile works with SRAM Flattop chain in addition to other 9, 10, 11, and 12-spd chains (except Shimano HG+ 12-speed chain).
Compatibility
Shimano GRX cranksets including RX600 and RX810

Drop-Stop FT tooth profile is compatible with SRAM Flattop chain

Wolf Tooth patented Drop-Stop wide/narrow tooth profile provides the ultimate chain retention and mud shedding ability

Use Drop-Stop B for all 9, 10, and 11spd chains or 12spd SRAM Eagle, SRAM Flattop, Campagnolo, KMC, Connex or Wippermann chains