E*thirteen Helix Race 12s Cassette - 9-45T

Regular price £329.95
Tax included.


Helix Race | Cassette | 12 Speed | 9-45T | Intergalactic

The Helix Race 12-Speed 9-45T Cassette is a drop in Gravel Upgrade, that extends legendary Helix shift performance and cross-compatibility with SRAM™ and Shimano™ 12-speed drivetrains, to the lightweight Gravel and XC marketplace. With weights starting at just 310g, Flat-Top Chain compatibility, and a 500% range, you get an instant 13% range increase over XPLR 10-44 cassettes. e*thirteen's proprietary 9T cog also allows dropping chainring size for improved clearance and lower overall weight.


  • Compatible with SRAM™ 12 Speed Mountain and Gravel Drivetrains, and Shimano™ 12 Speed MTB drivetrain
  • 2-piece design allows for replaceable aluminum cogs
  • A drop-in replacement for SRAM™ XPLR™ 10-44T Cassettes with a 13% increase in range!
  • Flat-Top Chain and XPLR™ Derailleur Compatible
  • XD/XDR Driver required
  • Save weight, increase range, and expand compatibility on your Gravel or XC dream build.


Freehub Mount XD Driver
Type 9-45T
Material 10 Steel / 2 Alloy Cogs
Range 500%
Size 9,11,13,15,17,19,22,25,28,32,38,45
Speeds 12 spd
Weight 340g
Color Intergalactic
Warranty 5 Years

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