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e*thirteen Helix Race 12 Speed Cassette


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SKU: FW2HRA-122 Categories: , , ,

The e*thirteen Helix Race 12 Speed 9-52T Cassette has the MOST Range and is Cross Compatible! PLUS an added a 52T sprocket for an eye-watering 578% total range!

e*thirteen expanded drivetrain possibilities for every rider with our original 9-50T Helix Race Cassette with 533% gear range. Our proprietary 9t sprocket and patented two-piece construction gave riders an unprecedented ability to build the drivetrain of their choice.

Love to grind the 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 with the e*thirteen Helix Race 12 Speed 9-52T Cassette.


  • Widest range in the galaxy at 578%
  • Cross compatibility with Shimano, SRAM, and TRP drivetrains and chains
  • 2-piece forged/machined design provides ease of assembly/service and reduces waste
  • Aluminium and Steel clusters can be replaced separately to reduce service cost
  • 43-52t aluminium 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
  • Colour: Grey
  • Tested extensively for analog and e-bike use
  • Weight: 404g

NOTE: Special step for Hope hubs!! – If you are installing a pinch-bolt cassette on a Hope XD™ driver, you will need a special shim – please enquire when purchasing at

ethirteen Helix Race 12Spd Cassette Installation

Guaranteed to be free from defects in materials or workmanship for 5 years after original purchase.


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