INDUSTRY LEADING:
Helix R 12-speed, 556% Range, 375-Grams
More Range, Less Weight
The HELIX R Cassette is an upgrade to any SRAM™ Eagle™ or Shimano™ drivetrain*, with more range than any other cassette on the market. The 9 tooth cog lets you step down one chainring size while keeping the same top end gearing and provides not only better ground clearance, but an overall lighter drivetrain.
Helix R Features In-Depth > 
*XD™ driver required. 
 
PRODUCT SPEC
Compatibility
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.
*All e*thirteen cassettes require XD drivers for mounting
**Not recommended for ebike use. For ebike applications we recommend our TRS+ Espec cassettes.**
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
375 Grams
 
Guaranteed to be free from defects in materials or workmanship for 5 years after original purchase