110 BCD Asymmetric 4-Bolt Chainrings for Shimano GRX Cranks locally Ultralight 20mm Socket Insert -

Ultralight 20mm Socket Insert - for the Otso Cycles Tuning Chip and other 20mm socket applications

Protection

ShiftMounts are adapter mounts that allow you to integrate SRAM and Shimano shifters with several different brakes from Shimano

Dished towards the frame) is for 52mm chainline for Boost bikes

110 BCD Asymmetric 4-Bolt Chainrings for Shimano GRX Cranks locally Ultralight 20mm Socket Insert -These 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 chainrings available in 46T 52T. Sizes 36T 44T are non aero. Aero chainrings are NOT compatible