E-Thirteen Helix Race Cassette 12s AL Cogs Galactic

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 with and can be used to upgrade your existing Helix or TRS+ 9 - 50T cassette. The 43 - 52T aluminum section will fit on your old 9 - 50T steel section for increased range. When installing the Helix Race 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 more economical solution. The Intergalactic 43 - 52t cluster features PVD finishing which improves durability and wear life.

PRODUCT SPEC

Material 2 aluminum cogs, 10 steel cogs
Speeds 12 Speed
Teeth
Aluminum Cluster: 43,52T
Steel Cluster: 9,11,13,15,17,20,23,27,31,36T