e*thirteen Helix R Guidering - 30t, 11/12-Speed, 3mm Offset, SRAM 3-Bolt DM, Intergalactic CR5313

Helix R SRAM Direct Mount Chainrings offer a true upgrade solution for SRAM 3-Bolt MTB crank users (including DUB), to achieve cross compatibility with both SRAM™ and Shimano™ 11 and 12-speed drivetrains.