KWI Clutching - Polaris RZR Pro R / RZR 4 Pro R / RZR Pro R Boost / RZR 4 Pro R Boost Fusion Secondary Clutch

KWI Fusion Secondary is a patent-pending, full billet floating secondary clutch engineered for Polaris RZR Pro R. Built around KWI's proven Floating Clutch Technology, it allows the secondary to self-align with the primary under load, eliminating side-load, belt deflection, and friction that reduce efficiency under real riding conditions.

The floating hub design allows controlled lateral movement on the gearbox shaft, maintaining perfect belt alignment through the entire shift cycle. This delivers cleaner belt-to-sheave contact, smoother RPM transitions, lower operating temperatures, reduced belt wear, and more wheel horsepower than factory fixed secondaries.

Paired with a Can-Am–style DR3 Groovix Helix, the Fusion Pro R Secondary delivers proven belt grip, aggressive backshifting, and active cooling performance. The DR3 Groovix is the most capable helix KWI builds.

For the first time on the Pro R, riders can fine-tune final drive ratio through belt selection without gearbox changes. Run a longer belt for higher top-end speed in dunes and desert, or swap to a shorter belt for up to 15% gear reduction for rock crawling and technical terrain. Change your gearing in seconds at the clutch.