ethirteen Helix R 12-Speed Cassette
Get more range with less weight. The ethirteen Helix R 12-speed cassette delivers an impressive 556% range and weighs a mere 345 g. Plus, it's compatible with both SRAM Eagle and Shimano drivetrains.
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- 9–50T design includes 9-, 11-, 13-, 15-, 17-, 20-, 23-, 27-, 31-, 36-, 42- and 50-tooth cogs
- 9-tooth cog lets you step down one chainring size while keeping the same top end gearing, providing not only better ground clearance, but also an overall lighter drivetrain
- Smallest 10 cogs are built from steel for added durability, while the 2 largest are built from aluminum to keep overall weight down
- Built for compatibility with both SRAM Eagle and Shimano drivetrains, despite the differences in cog spacing and chain behavior
- XD driver required
Imported.
View all ethirteen Bike Cassettes| Best Use | Mountain Biking |
|---|---|
| Material(s) | Aluminum and steel |
| Speeds | 12-speed |
| Compatible Freehub | SRAM XD |
| Weight | 345 grams |
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Loving my new helix cassette!!
I got this cassette to replace my worn out SRAM cassette. While the install process was a bit different, e*13 had clear instructions on their website and install went smoothly. The cassette is lighter, less expensive and functions seems nearly identical to the XO1 cassette I removed. The addition of the 9T is a nice touch also.
Cassette machining problem, bolt wouldn't fasten
The cassette installed easily until the final bolt. It would not screw in. I Uninstalled the cassette and tried the bolt with upper half removed, bolt went in no problem. I attempted to install again and same problem occurred. It appears that the cassette tolerance is off which doesn't allow the bolt to enter. REI was awesome and returned my purchase. You should be aware that e13 has no contact number and states they will reply to questions when they can 7-10 days. I'm giving them another shot time will tell.