e*Thirteen Helix Race 12-Speed Cassette - Black Variant:9-52T 142grams per calliper they offer

142grams per calliper they offer a substantial weight saving

90mm CLAMP DIAM 31

so every rider gets the fit they need

Big Chainring*1

Built to withstand the rigors of Enduro

e*Thirteen Helix Race 12-Speed Cassette - Black Variant:9-52T 142grams per calliper they offerHELIX 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?