e*thirteen Helix Race 12-Speed 9-52T Cassette - Grey AI Width (Drops): 430mm / 450mm

Width (Drops): 430mm / 450mm / 470mm / 490mm (outside-outside)

Cannondale Derailleur Hanger TA ST SS LAB

Side wall padding to keep your Fumpa safe

Gravel racing handlebars

Bounce-free

e*thirteen Helix Race 12-Speed 9-52T Cassette - Grey AI Width (Drops): 430mm / 450mme*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