ethirteen Helix Race 12sp 9-52T Cassette Replacement Alloy Clusters
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ethirteen Helix Race 12sp 9-52T Cassette Replacement Alloy Clusters Info
The Helix Race 12sp 9–52T Cassette Replacement Alloy Clusters from ethirteen are a smart, cost-effective way to refresh or upgrade your Helix drivetrain without replacing the entire cassette. Unlike one-piece designs, Helix Race cassettes use modular, replaceable gear clusters—dramatically reducing long-term service costs while keeping performance at a race-ready level.
This alloy cluster expands range to a full 52T and is backward compatible with existing Helix and TRS+ 9–50T cassettes. Simply pair the 43–52T aluminum section with your current steel section to gain extra climbing range without a full cassette swap. Finished with ethirteen’s Intergalactic PVD coating, the cluster delivers improved durability and wear life where it matters most.
Helix Race 12sp 9–52T Alloy Cluster Specs at a Glance
- Application: Replacement alloy gear cluster for Helix Race 12-speed cassettes.
- Tooth Range: 43–52T aluminum cluster.
- Compatibility: Helix Race 12sp 9–52T; backward compatible with Helix and TRS+ 9–50T cassettes.
- Finish: Intergalactic PVD coating for enhanced wear resistance.
- Drivetrain: 12-speed systems.
Design Benefits
- Lower Service Costs: Replace only the worn alloy cluster instead of the entire cassette.
- Expanded Range Upgrade: Add a 52T bailout gear to existing 9–50T Helix or TRS+ cassettes.
- Improved Durability: PVD coating enhances wear life under high torque loads.
- Simple Compatibility: Direct fit with existing Helix steel sections.
Installation & Wear Notes
When installing a new alloy cluster, it’s strongly recommended to check chain wear. If chain stretch measures 0.5% or more, cassette life will be significantly reduced. Pairing a new chain with your replacement cluster is the most economical way to maximize durability and performance.
Final Take
The Helix Race 12sp 9–52T Cassette Replacement Alloy Clusters highlight the advantage of ethirteen’s modular cassette design. With easy upgrades, reduced replacement costs, and proven durability, they’re an ideal solution for riders who want maximum range and long-term value from their drivetrain.













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