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e*thirteen Helix Race 12 Spd Cassette Replacement Cluster 9-50T


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The e*thirteen Helix Race 12 Speed Cassette Replacement Cluster is used to replace Helix Race Gear Clusters, keeping replacement costs to a minimum.

Unlike SRAM™ Eagle™, Helix Race cassettes have replaceable gear clusters. That means ongoing service and replacement costs will be less than half that of SRAM cassettes. As an added bonus, Helix Race 12s clusters are backward compatible. It can be used to upgrade your existing TRS+ 9-50 cassette.

When installing the e*thirteen Helix Race 12 Speed Cassette, as with any cassette, we recommend checking chain wear. If your chain shows 0.5% or more wear, you will significantly decrease the wear life of your new cassette. Installing a new chain with your new cluster is a much better and economical solution.


NOTE: Special step for Hope hubs!! – If you are installing a pinch-bolt cassette on a Hope XD™ driver, you will need a special shim – please enquire when purchasing at

Other e*thirteen Cassette Replacement Clusters include: e*thirteen Helix Plus 12Spd Cassette Replacement Cluster

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