oth the Helix R 11 and 12-Speed Cassettes work flawlessly with Shimano™ and SRAM™ 12s drivetrains, despite the challenges in designing for the different cog spacing and chain behavior.
The improved performance of our new Helix cassette features great Shimano™ 12s shifting performance and improved reliability of steel and aluminum assembly.
The aluminum one-piece 42/50 tooth cluster is easily replaceable so riders can keep their steel cluster for multiple seasons and freshen up the granny as needed without buying a whole new cassette.
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