e*thirteen Helix Race 12-Speed 9-52T Cassette - Bronze Workshop SpecificationsMax Lumens: 300

SpecificationsMax Lumens: 300

34 oz (EXT

built with best-in-class materials

as well as Specialized SL1

including Shimano®

e*thirteen Helix Race 12-Speed 9-52T Cassette - Bronze Workshop SpecificationsMax Lumens: 300e*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