Helix R 12-Speed 9-45T Gravel Cassette

FW2HRA-101

The Helix R 12-Speed 9-45T cassette extends legendary Helix shift performance and cross compatibility with SRAM™ and Shimano™ 12-speed drivetrains, to the light weight Gravel and XC marketplace.

  • Weighing in at a svelte 319g, this light weight engineering marvel offers an industry leading 500% gear ratio, due to e*thirteen's exclusive 9T highest gear cog.
  • A drop-in replacement for SRAM™ XPLR™ 10-44T Cassettes - A 13% increase in range!
  • Our 9T cog also also lets you step down one chainring size, while keeping the same top end gearing, meaning both better ground clearance and an overall lighter drivetrain.
  • Helix Cassettes were engineered with improved reliability of steel and aluminum assembly, and the 38-45T alloy cluster is easily replaceable so riders can keep their steel cluster for multiple seasons and freshen up the granny as needed without buying a whole new cassette.
  • Futureproof your bike, save weight, add gear range and spice things up with a touch of color with e*thirteen Helix-R cassettes.
*Hope XD™ drivers are undersized at the clamp location and require a Cassette Shim Kit 
Shipping Policy    Free Domestic Shipping at $100.00
Starting at
Regular price
$319.00
Sale price
$319.00

Product Spec

Freehub Mount
XD™ and XDR™ Drivers Only
Material
2 aluminum cogs, 10 steel cogs. PVD finishing on Intergalactic model improves durability and wear life.
Range
500%
Size
9-45T:9-11-13-15-17-19-22-25-28-32-38-45
Speeds
12 Speed
Weight
310 Grams

Tech Info

User manual
Frequently Asked Questions

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