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 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 Minnesota USA
• Ring Position/Type: Chain Retaining Single Ring
• Tooth Count: 38
• Drivetrain Speeds: 12
• Round or Oval: Round
• Chainring BCD: 110 Shimano Asymmetric
• Material: Aluminum
• Color: Black
• Defined Color: Black