e*thirteen Helix Plus 12-Speed 9-50T Cassette - Black General Length: 65 mmMaterial: Polypropylene

Length: 65 mmMaterial: Polypropylene

Mounting bolts included

even at high pressures

entirely tunable by hand

we are able to incorporate a softer central zone instead of a traditional cut-out to provide better pressure relief without sacrificing performance

e*thirteen Helix Plus 12-Speed 9-50T Cassette - Black General Length: 65 mmMaterial: PolypropyleneEngineered for E bike durability and cross experience compatible with SRAM, Shimano, and TRP Shifters and Derailleurs of the same gearing count and similar cage capacity. This 9 50T combination is the hot setup for your 12 Speed MTB and allows for a 2 tooth smaller front chainring, shorter chain length, more clearance, and range with our exclusive 9 tooth smallest cog. Future proof your bike, and save weight and cash with the Helix Plus Cassette.