NEW e*thirteen UL Ultralight Direct Mount Guidering for Boost Chainlines - 30t, 10/11/12-Speed, 5mm Offset, Hyperglide+ Chain Compatible variant-size-lg Brakes: Shimano GRX RX400

Brakes: Shimano GRX RX400

Hydroformed Alloy 6061 series Internal Cable Routing

Compatible with current basic trainers and most CycleOps Pro series trainers

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NEW e*thirteen UL Ultralight Direct Mount Guidering for Boost Chainlines - 30t, 10/11/12-Speed, 5mm Offset, Hyperglide+ Chain Compatible variant-size-lg Brakes: Shimano GRX RX400The e*thirteen UL (Ultralight) Guiderings are beautiful as well as incredibly light. Compatible with 10,11,and 12 speed drivetrains. Narrow wide tooth design for chainring retention through the rough stuff Ultralight, strong, and beautiful design 10, 11, and 12 speed compatible Only compatible with e*thirteen's direct mount Quick Connect interface Direct Mount Type: Direct Mount e*Thirteen Tooth Count: 30 Drivetrain Speeds: 10 Drivetrain Speeds: 11