If you're pushing the limits in your Polaris RZR Pro R, the EVP STM Tuner Maxxx Secondary Clutch is the upgrade your machine needs to handle serious power with precision. Built from rugged billet for unmatched durability, this secondary clutch is designed to take on intense riding while keeping belt and clutch temps in check thanks to its performance-driven finned design. Whether you're racing across open desert or crawling through technical terrain, the STM Maxxx delivers smoother backshifting, better belt grip and more consistent performance, especially when you're putting serious torque to the ground.
Features:
- Calibrated specifically for your tune level up to EVP P54 Turbo Systems (TAPP Primary Clutch also required)
- All-billet construction for added durability and reliability
- Finned secondary design provides more airflow for lower belt and clutch temps
- Kit Includes a secondary spring, helix, and belt tool
- For best results, EVP recommends running the STM Tuner Secondary Clutch with the variety of EVP-Spec TAPP Primary Clutch Calibrations
