Wolf Tooth Shimano 110 Asymmetric BCD Chainring - 38t 110 Asymmetric BCD 4-Bolt Drop-Stop ST For Shimano GRX Cranks Black. These chainrings are for Shimano GRX cranks. They feature Wolf Tooths 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.

Compatible with Shimano GRX cranksets including RX600 and RX810

Drop-Stop ST is designed for Shimano Hyperglide and KMC 12-speed chains only

Wolf Tooths patented Drop-Stop wide/narrow tooth profile provides the ultimate chain retention and mud-shedding ability

Intended for 50mm chainlines (Same as Shimano GRX chainrings)

CNC machined with premium 7075-T6 aluminum for exceptional strength and weight savings

Manufactured in Minnestoa USA