WOLF TOOTH chainring BCD 4-Bolt 110x42 for Shimano GRX

This converter is designed for Shimano GRX cranks. It features our patented Drop-Stop® design for improved wear resistance and chain retention. The newly updated tooth profile works with the SRAM Flattop chain and other 9, 10, 11, and 12-speed chains (except the 12-speed Shimano HG+ chain). Compatibility with Shimano GRX cranks including RX600 and RX810 Drop-Stop B tooth profile is compatible with SRAM Flattop chain Wolf Tooth's patented wide/narrow Drop-Stop tooth profile provides maximum chain retention and mud-shedding ability Use Drop-Stop B for all 9, 10, and 11spd chains or 12spd chains from SRAM Eagle, SRAM Flattop, Campagnolo, KMC, Connex, or Wippermann Weight:   36t • 65.5g | 38t • 72g | 40t • 84g | 42t • 89g | 44t • 92g | 46t • 102g Material: 7075-T6 aluminum Chainline: 50mm (same as Shimano GRX chainrings) Made in the USA