NEW e*thirteen Helix R Aluminum Cluster - 11-Speed, 46t, Gray Type_Bearings This would be a riders

This would be a riders "spare" CO2

Race endurance

If you have an oversize frame

The 9 tooth cog lets you step down one chainring size while keeping the same top end gearing and provides not only better ground clearance

Moderately padded

NEW e*thirteen Helix R Aluminum Cluster - 11-Speed, 46t, Gray Type_Bearings This would be a ridersHelix R Clusters can be used to service e*thirteen Helix R cassettes. Designed to pair with steel cog cluster to create a 9 50t cassette Helix R 12 speed clusters are backward compatible with and can be used to upgrade an existing TRS+ 9 50 cassette Cassette Body Type: SRAM XD 11 12 Speed Drivetrain Speeds: 11 Material: Aluminum Tooth Count: 46