e*thirteen Helix R Guidering - 30t 11/12-Speed 52/55mm Flip Flop CL 3/5mm Offset e*thirteen DM Gray Bearing I.D. (mm)-17 smoked in small batches over

smoked in small batches over alder wood

35mm 157g & 50mm 173g

} Easily checks brake pad wear to give a clear indication whether replacements are needed

Snap the magnet on the side for quick

XD driver body compatible

e*thirteen Helix R Guidering - 30t 11/12-Speed 52/55mm Flip Flop CL 3/5mm Offset e*thirteen DM Gray Bearing I.D. (mm)-17 smoked in small batches overe*thirteen Helix R Guidering 30t 11 12 Speed 52 55mm Flip Flop CL 3 5mm Offset e*thirteen DM Gray. Helix R Direct Mount rings are designed to function equally well with all 11 and 12 speed SRAM and Shimano drivetrain systems on e*thirteen Helix or legacy TRS LG1 XCX cranks. e*thirteens Gen 4 narrow wide tooth profile delivers upgraded chain retention lower system noise and increased wear life Cross Compatible with SRAM and Shimano 11 and 12 speed