NEW SRAM X-Sync Road Direct Mount Chainring for RED/Force 42t, 12-Speed, 8-Bolt Type_Headsets The Shimano Tiagra SL-4600 offers

The Shimano Tiagra SL-4600 offers Rapidfire Plus shifting with 10-speed road drivetrain compatibility

Brake Type:RIM

Crown Race: 30

Reusable: No

NEW SRAM X-Sync Road Direct Mount Chainring for RED/Force 42t, 12-Speed, 8-Bolt Type_Headsets The Shimano Tiagra SL-4600 offersSRAM X Sync Road Direct Mount Chainrings for RED and Force drivetrains feature a wide tooth, narrow tooth design to provides maximum chain control. SRAM 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 you're always in the right gear Defined Color: Gray Direct Mount Type: Direct Mount SRAM