The next generation of Vortex aluminum rear sprockets, V4 builds on the long-running CAT5 sprocket platform with a lighter, more aggressive design. Reduced rotating mass improves acceleration, throttle response, handling, and overallagility. Ideal for street, track, and performance applications.
- Excellent concentricity for smooth, quiet operation and efficient power transfer
- Precision-machined from high-strength 7075-T6 aluminum
- 10-15% Lighter than CAT5
- Manufactured in the USA
This Part Fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2021-2025 | Aprilia | RS 660 | Base |
| 2023-2024 | Aprilia | RS 660 Extrema | Base |
| 2025 | Aprilia | RS 660 Factory | Base |
| 2021-2024 | Aprilia | Tuono 660 | Base |
| 2022-2025 | Aprilia | Tuono 660 Factory | Base |
