These chainrings are for Shimano GRX cranks. They feature Wolf Tooth's 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 RX810Drop-Stop ST is designed for Shimano Hyperglide+ and KMC 12-speed chains onlyWolf Tooth’s patented Drop-Stop wide/narrow tooth profile provides the ultimate chain retention and mud-shedding abilityIntended for 50mm chainlines (Same as Shimano GRX chainrings)CNC machined with premium 7075-T6 aluminum for exceptional strength and weight savingsManufactured in Minnesota USA
| Ring Position/Type |
Chain Retaining Single Ring |
| Tooth Count |
36, 38, 40, 42, 44 |
| Drivetrain Speeds |
12 |
| Round or Oval |
Round |
| Chainring BCD |
110 Shimano Asymmetric |
| Material |
Aluminum |
| Color |
Black |
| Defined Color |
Black |