110 BCD Asymmetric 4-Bolt Chainrings for Shimano GRX Cranks Tooth Count:50T Spark RC Carbon HMF Frame

Spark RC Carbon HMF Frame

CAMO chainrings - elliptical or round

rubbery Turnamic Easy Walk sole

Chamois Pad

110 BCD Asymmetric 4-Bolt Chainrings for Shimano GRX Cranks Tooth Count:50T Spark RC Carbon HMF FrameThese 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