e*thirteen Helix Guidering - 30t, 10/11/12-Speed, 52/55mm Flip Flop CL, 3/5mm Offset, e*thirteen DM, Black Trainers UPC: 796941150316

UPC: 796941150316

Manufacturer Part Number: T47-BB-30-BB-1

182170-Q0-L

UPC: 812367016354

181236-Q0-L

e*thirteen Helix Guidering - 30t, 10/11/12-Speed, 52/55mm Flip Flop CL, 3/5mm Offset, e*thirteen DM, Black Trainers UPC: 796941150316Helix Direct Mount rings are designed for use with e*thirteen Helix, TRS, LG1 and XCX Direct Mount cranks. These rings are compatible with both Shimano and SRAM 12 speed drivetrains. e*thirteen's 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 chains Convenient flip flop design, compatible with both Boost and SuperBoost chainlines (52