RZRX300 Primary KWI plus the KWI Groovix Helix

plus the KWI Groovix Helix for aggressive backshifting

The #4 helix angle shifts hard at lower speeds and holds RPMs in the power band at higher speeds — producing a smooth

and provide the durability needed for serious riding

Built without harmful chlorinated compounds

RZRX300 Primary KWI plus the KWI Groovix HelixUnleash the full potential of your Polaris RZR XP with the RZRX300 Primary by KWI. This fully assembled clutch system combines the dependability of an OEM RZR primary with high performance upgrades including the X300 Clutch Kit, RZRBlade 300 Billet Inner Sheave, and our Billet Overdrive Cover. Designed to deliver more power, torque, responsiveness, and cooler belt temps, the RZRX300 Primary is your all in one solution for serious off road performance.