E*thirteen Helix R Guidering(3mm Offset)3-Bolt 30t Bronze MFPN=20108 Steel Cog Details 11-13-15-18-22-28-34-40 Cog

Steel Cog Details 11-13-15-18-22-28-34-40 Cog Material Steel Finish Black

Market-leading durability and quiet performance validated in lab and field tests

The GRIP X damper exudes exemplary descent performance refined for less weight easier set up and an easy access firm mode for pedaling efficiency

4140 CrMo plated axle

injection molded head

E*thirteen Helix R Guidering(3mm Offset)3-Bolt 30t Bronze MFPN=20108 Steel Cog Details 11-13-15-18-22-28-34-40 CogE*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 3 Bolt DM 3mm Offset