ethirteen Helix R 11-Speed Cassette
A premier choice for 11-speed mountain drivetrains, the ethirteen Helix R T cassette has a 9–46-tooth profile, allowing for smaller front chainrings, shorter chain length and a nice wide (511%) range.
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- Compatible with both SRAM and Shimano 11-speed chains and derailleurs; designed to shift without compromise, so you can change components without concern
- Freehub compatibility: XD and XDR drivers only
- Wider range and 9-tooth small cog let you run a 2-tooth smaller chainring for more clearance and reduced weight
- Lightweight construction reduces overall rear wheel weight, thus improving braking, suspension and handling
- 2-piece design allows for replaceable aluminum cogs (not included)
- Profile: 9, 11, 13, 15, 17, 20, 24, 28, 33, 39 and 46 teeth; total range of 511%
Imported.
View all ethirteen Bike Cassettes| Best Use | Mountain Biking |
|---|---|
| Material(s) | 1 aluminum cog/10 steel cogs |
| Speeds | 11-speed |
| Compatible Freehub | SRAM XDR SRAM XD |
| Weight | 370 grams |
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Gets you up the hill
Replaced a stock Force 10-42 cassette on a 2017 Cutthroat Force 1x setup. Shifts cleanly without any adaptors (e.g., Goatlink). The extra low range greatly reduces hike-a-bike and I dropped 2 teeth up front to keep the top end about the same. The steps in the middle sometimes leave me in between gears, but this is the 1x11 compromise regardless. It's not cheap but it puts new life in my Cutthroat without going big with an AXS mullet. So far I am very happy with the results.