e*thirteen Helix Plus 12-Speed 9-50T Cassette - Black General and Helix rings are fully

and Helix rings are fully cross-compatible with both Shimano™ and Sram™ 11 and 12-speed drivetrains

piston assembly

entirely tunable by hand

Length: 65 mmMaterial: Polypropylene

Presta Valve w/ RVC

e*thirteen Helix Plus 12-Speed 9-50T Cassette - Black General and Helix rings are fullyEngineered 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.