e*thirteen Helix Race 12-Speed 9-52T Cassette - Grey FSD Bottom bracket width: 68 /

Bottom bracket width: 68 / 73 mm

Hub Spacing 12mm x 100 Thru Axle (axle included)

Lighter and lower than other styles

deformation

Includes UV torch to check for 100% coverage

e*thirteen Helix Race 12-Speed 9-52T Cassette - Grey FSD Bottom bracket width: 68 /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? Throw on a 28T chainring and go pull some stumps. Hungry for