Oval 110 BCD Asymmetric 4-Bolt Chainrings for Shimano GRX Cranks Tooth Profile:Drop-Stop B Base Wax Extra for coarse-grained

Base Wax Extra for coarse-grained snow and aggressive conditions where extra durability is needed

Compatible with all cable-actuated dropper posts

23mm) nipples

Magnets & O-rings keep all parts in place

Oval 110 BCD Asymmetric 4-Bolt Chainrings for Shimano GRX Cranks Tooth Profile:Drop-Stop B Base Wax Extra for coarse-grainedThese chainrings are for Shimano GRX cranks. They feature our patented Drop Stop design for the best wear life, chain retention, and mud clearance. Drop Stop ST is specifically for the Shimano 12 speed Hyperglide+ chain, which is used by GRX 12 speed. Drop Stop B works with all other 9, 10, 11, and 12 spd chains, including SRAM Flattop. Compatibility Aero chainring available in 46T. Sizes 38T and 42T are non aero. Shimano GRX cranksets including RX600