E*thirteen Helix Race 12s Cassette

Regular price £349.95
Tax included.


Helix Race | Cassette | 12 Speed | 9-52T | Intergalactic

Helix Race 12s 9-52T Cassettes deliver an industry-leading 578% gear range and precision shifting performance with Shimano, SRAM, and TRP 12s drivetrains. Love to grind climbs? Throw on a 28T chainring and go pull some stumps. Hungry for top speed? Push a big ring, comfortable in the knowledge that you’ve got the most gear range you can get from a single-ring, 12-speed setup. Helix Race 9-52T cassettes are light enough for weight-conscious trail bikes at just 392g, yet tough enough to take the abuse of high-powered e-bikes.


  • Widest range in the galaxy at 578%
  • Cross compatibility with Shimano, SRAM, and TRP 12s drivetrains and chains
  • 2-piece forged/machined design provides easy and affordable assembly/service and reduced waste
  • 43-52t aluminum cluster backward compatible with 9-50T Helix Plus or Race cassettes
  • Unique 9T high gear allows use of smaller chainrings for clearance and weight savings
  • Tested extensively for MTB and e-bike use
  • Get the widest range available, save weight, and futureproof your ride with e*thirteen cross-compatibility and serviceability.


Freehub Mount XD Driver
Type 9-52T
Material 10 Steel / 2 Alloy Cogs
Range 578%
Size 9,11,13,15,17,20,23,27,31,36,43,52
Speeds 12 spd
Weight 404g
Color Intergalactic
Warranty 5 Years



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