Ethirteen Helix R Cassette Unlike SRAM Eagle, Helix R cassettes have replaceable gear sets. This means that ongoing service and replacement costs will be less than half that of SRAM cassettes. As an added bonus, Helix R 12s clusters are backward compatible and can be used to upgrade your existing TRS+ 9-52 cassette. When installing the Helix R cassette, as with any cassette, you should check your chain wear. If your chain shows wear of 0.5 percent or more, you will significantly reduce the wear life of your new cassette. Installing a new chain with your new cluster is a much better and economical solution.
- Material: 2 aluminum sprockets, 10 steel sprockets.
- Range: 9-52T: 578%.
- Speed: 12 speeds.
- Steel clusters: 9, 11, 13, 15, 17, 20, 23, 27, 31, 36, 43, 52T.
- Weight: 404g.
- Color: Nickel.
- Compatible with Sram XD.
Includes ethirteen Helix R sprockets.
- Material: 2 aluminum sprockets.
- Speed: 12 speeds.
- Aluminum custer: 43.52T.
- Color: Orange.
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