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

Helix 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 (52/55mm)