NEW SRAM 38 Tooth 107mm BCD x 4-Bolt 1x12-Speed X-Sync Chainring, Blast Black Type_Tires The Shimano GRX ST-RX400 10-speed

The Shimano GRX ST-RX400 10-speed hydraulic disc/brake lever provides greater control on mixed terrain

Tall shoulder lugs add traction through corners and over soft surfaces

Chainline/Hub Compatibility: 157 Super Boost Hubs

2 mm grips with protected ends

NEW SRAM 38 Tooth 107mm BCD x 4-Bolt 1x12-Speed X-Sync Chainring, Blast Black Type_Tires The Shimano GRX ST-RX400 10-speedSRAM's X Sync Road Chainrings are designed for provide maximum control when used with AXS road cranksets. X SYNC wide tooth, narrow tooth chainring technology provides maximum chain control Laser etched chainring finish is more durable X Range gearing technology gives you more range and a smoother gear progression, so youre always in the right gear Can be installed with a single tool, making gearing changes a breeze Chainring bolts not included Tooth