e*thirteen’s New Helix R Cassette

e*thirteen is the market leader for light, ultra-wide-range cassettes. Today they announced the Helix R cassette. The cassette is designed to work with both SRAM™ Eagle or Shimano™ drivetrains and offers a 556% range at a scant weight of 345-grams.

The Helix R starts at $289.95 for 12-speed, and 11-speed.


  • Works flawlessly with Shimano™ and SRAM™ 12s drivetrains, despite the challenges in designing for the different cog spacing and chain behavior.
  • Additionally, if your wheel has a SRAM™ XD™ Driver and you want to upgrade to Shimano™ 12s, you not only save money on the cassette and don’t have to spend the extra on a new hub driver.
  • Freehub Mount XD™ and XDR™ Drivers Only
  • Material 2 aluminum cogs, 10 steel cogs. PVD finishing on Intergalactic model is twice as durable.
  • Range 556%
  • Size 9-50T: 9,11,13,15,17,20,23,27,31,36,42,50
  • Speeds 12 Speed
  • Weight 345 Grams
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