e*Thirteen Helix Race 12-Speed Cassette - Black Variant:9-52T Spindle Diameter: 29mm (SRAM DUB)

Spindle Diameter: 29mm (SRAM DUB)

142grams per calliper they offer a substantial weight saving

All you need to do is focus on the training

Four different mounting positions let you fine-tune the mounted component with the convenience of its out-front location

e*Thirteen Helix Race 12-Speed Cassette - Black Variant:9-52T Spindle Diameter: 29mm (SRAM DUB)HELIX RACE 12 SPEED CASSETTE MOST RANGE. CROSS COMPATIBLE. e*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?