E*thirteen Helix Race Cluster 11S sprocket Sram, Shimano

When installing the Helix R 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.

Features

• 11 Speed.
• Teeth: 46.
• Compatibility: Sram, Shimano.
• Material: aluminium.
• Range: 9-46 T: 511%.
• Reale weight: 141 g

Cassette 9-39T not included