E*thirteen Helix R Guidering (52/55 Flip Flop), 30t - Bronze CO2 Inflators/Cartridges Kit includes one black upper

Kit includes one black upper air seal

FLOAT SL offers the ultimate suspension efficiency for riders pushing their potential

Symmetrical teeth on the internal chainring provides fluid

DT2733 WE3415 641060

- High-strength

E*thirteen Helix R Guidering (52/55 Flip Flop), 30t - Bronze CO2 Inflators/Cartridges Kit includes one black upperE*thirteen QuickConnect Direct Mount rings include 1mm spacers, which allows them to be run on legacy cranks (TRS LG1 XCX), as well as Helix and Helix R cranks 3 bolt direct mount chainrings fit SRAM and other similar interface cranks Tooth profile is compatible with both Shimano and SRAM chains in both 11 and 12 speed Can be flipped to provide either a 52 or 55mm chainline Today's Stock Status Currently not available 1 Available to ship in 2 4