Details
The e*thriteen Helix Race 12-speed 9-52t cassette is engineered to deliver precision shifting performance with an industry leading 578% gear range. The proprietary 9 tooth smallest cog combined with the 52t largest 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
– Patented 2-Part design provides strength, stiffness, light weight, and ease of service
– Aluminum and steel clusters can be replaced separately to reduce service cost
– 9 tooth high gear allows 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
Part Numbers
| Option | UPC | MPN |
|---|---|---|
| Bronze / 9 – 52T | 04711280341559 | FW2HRA-119 |
| Eggplant / 9 – 52T | 04711280341566 | FW2HRA-120 |
| Gray / 13 – 52T | 04711280341467 | FW2HRA-110 |
| Gray / 9 – 45T | 04711280340262 | FW2HRA-101 |
| Gray / 9 – 52T | 04711280341580 | FW2HRA-122 |
| Intergalactic / 9 – 52T | 04711280341542 | FW2HRA-118 |
| Naranja / 9 – 52T | 04711280341573 | FW2HRA-121 |
