e*thirteen Helix Race 12-Speed 9-52T Cassette - Bronze Workshop 2x foam rings

2x foam rings

built with best-in-class materials

including Shimano®

CN-LG 11-speed

our mix offers flexibility to meet your individual needs

e*thirteen Helix Race 12-Speed 9-52T Cassette - Bronze Workshop 2x foam ringse*thirteen expanded drivetrain possibilities for every rider with our original 9 50T Helix Race Cassette with 533% gear range. Our proprietary 9t sprocket and patented two piece construction gave riders an unprecedented ability to build the drivetrain of their choice. Now, weve built on that winning formula and added a 52T sprocket for an eye watering 578% total range. Love to grind climbs? Throw on a 28T chainring and go pull some stumps. Hungry for