EVP Tapp Roller Primary Clutch Kit for Polaris RZR Pro R

All EVP TAPP Primary Clutch Calibrations available on this page are designed specifically for RZR Pro R's WITH AN EVP ECU POWER FLASH OR PARAGON TURBO SYSTEM. Please also refer to the table below for required secondary clutch upgrades pertaining to your power level. P54 Turbo Kit Required Secondary Upgrades P54-500 Pro R STM Secondary Tuner, Calibrated P54-450 Pro R STM Secondary Tuner, Calibrated P54-400 Pro R STM Secondary Tuner, Calibrated P54-330 Pro R Orange Secondary Spring Stock to Stage 3 Pro R Orange Secondary Spring NEW EVP TAPP CLUTCH UPDATES (2024):Don't think a TAPP clutch can be any smoother and more responsive than it already is? Think again. The all-new Roller Spider design for TAPP Primary Clutches replaces the original button spider assembly for an instant power delivery due to the reduction in friction between the spider and movable sheave. This results in even better belt grip than before, lower belt temps, better belt life,