- 9-39t Steel
- 46t 7075 Aluminum
Helix R 11-speed, 511% Range, 325-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.
From day one, e*thirteen’s TRS Cassettes have delivered more range and value at a lower weight than the competition. Introducing Gen2 TRS Plus Cassettes featuring revised architecture, better shifting, and multiple configurations. All the TRS Plus Cassettes work with SRAM™ drivetrains, easily upgrading original equipment drivetrains. The revolutionary 9T cog is what sets these cassettes further apart, increasing range. Compatible with XD drivers only. New to the lineup is the TRS Plus 9-50T 12 Speed Cassette with an unmatched 556% range at only 398 grams.
TRS Plus 12 Speed Cassettes have class-leading range, and plug directly into all SRAM™ Eagle™ and Shimano™ XTR™, XT™, and SLX™ 12 speed drivetrains.
The exclusive-to-e*thirteen 9t sprocket allows you to run a smaller chainring for better ground clearance and additional weight savings.
If you’re planning on building up your new bike with a 12 speed drivetrain or your existing setup is running rough, consider saving some money and weight with e*thirteen’s TRS Plus 12 Speed Cassettes.
Special Note for Hope™ Hub Owners: Please notify us if you will be installing the cassette on a Hope™ XD driver, as Hope™ XD drivers do not adhere to licensed XD specification and require an additional shim which we will include with your order.