The e*thriteen Helix Race 12-speed cassette is engineered to deliver precision shifting performance with an industry-leading gear range. The proprietary 9-tooth smallest cog enables the use of a smaller chainring for improved clearance, lighter system weight, and a lower bail-out gear ratio without high gear compromise.
- Seamless cross-compatibility with Shimano, SRAM, and TRP 12-speed drivetrains
- The patented 2-Part design provides strength, stiffness, lightweight, and ease of service
- Aluminum and steel clusters can be replaced separately to reduce service cost
- 9-tooth high gear allows the use of smaller chainrings for clearance and weight savings
- Fits XD and XDR Drivers Only (Hope XD drivers are undersized at the clamp location and require a Cassette Shim Kit -Sold Separately)
- Tested extensively for analog and e-bike use
Helix Race Cassette 9-45t
| Range: |
9-45t, 500% |
| Cassette Cogs: |
9-11-13-15-17-19-22-25-28-32-38-45 |
| Rear Speeds |
12-Speed |
| Weight: |
319 grams |
| Freehub: |
SRAM XD and XDR driver |
Helix Race Cassette 9-50t
| Range: |
9-50t, 556% |
| Cassette Cogs: |
9, 11, 13, 15, 17, 20, 23, 27, 31, 36, 42, 50 |
| Rear Speeds |
12-Speed |
| Weight: |
384 grams |
| Freehub: |
SRAM XD and XDR driver |
Helix Race Cassette 9-52t
| Range: |
9-52t, 578% |
| Cassette Cogs: |
9, 11, 13, 15, 17, 20, 23, 27, 31, 36, 43, 52 |
| Rear Speeds |
12-Speed |
| Weight: |
404 grams |
| Freehub: |
SRAM XD and XDR driver |
Helix Race Cassette 13-52t
| Range: |
13-52t, 400% |
| Cassette Cogs: |
13, 15, 17, 19, 22, 25, 28, 32, 36, 40, 45, 52 |
| Rear Speeds |
12-Speed |
| Weight: |
467 grams |
| Freehub: |
SRAM XD and XDR driver |
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