110 BCD Asymmetric 4-Bolt Chainrings for Shimano GRX Cranks Tooth Count:50T The two zippered hand pockets

The two zippered hand pockets keep your wallet and phone secure during your activity

The major differences between the two models lie in the pressure zones and the groove length

Performance base

but holds its speed and durability for many km’s

dampen vibration and are extremely abrasion resistant

110 BCD Asymmetric 4-Bolt Chainrings for Shimano GRX Cranks Tooth Count:50T The two zippered hand pocketsThese 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