E*thirteen Helix R Guidering (52/55 Flip Flop) 30t - Bronze ModelNumber=K7723 Aggressive side lugs dig into

Aggressive side lugs dig into soft terrain to provide unmatched cornering traction

ESIs thickest grips

Machined from 6061-T6 aluminum in our Minneapolis facility

Front Hub: DT Swiss 370 Spline Disc

} Flat forward platform allows ease of movement on the saddle

E*thirteen Helix R Guidering (52/55 Flip Flop) 30t - Bronze ModelNumber=K7723 Aggressive side lugs dig intoE*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 Model Helix R Ring Type Single (Anti Chain Drop) Mount QuickConnect