KWI Clutching Speed UTV Fusion Clutch System

The KWI Clutching Fusion clutch system is a billet primary and secondary clutch upgrade for the Speed UTV platform, built for cooler operating temperatures, smoother backshifting and tighter RPM control than the factory CVT setup. KWI designed the Fusion primary, secondary, housing, ducting and belt together as one system, so this Speed UTV clutch upgrade requires the KWI Fusion Speed UTV carbon clutch housing and air ducting configuration.

Order the KWI Speed Fusion clutch system as the Fusion primary on its own, the Fusion secondary on its own, or the Full Fusion Package. KWI ships its Fusion Speed UTV primary with a Fusion Speed UTV puller and its Fusion Speed UTV secondary with the Fusion Kwik Lock belt change tool.

Running a pre-2026 Speed UTV? KWI sells a separate Fusion Speed UTV Retro Fit Kit for earlier models that adds the carbon fiber and Kevlar CVT housing, 4-inch air ducting and updated rear truss. That retrofit hardware is not included with this listing.

Key Features

• Fully billet KWI Fusion primary clutch, engineered from the ground up for the Speed UTV platform
• Fully billet KWI Fusion secondary clutch, co-developed with the primary, housing, ducting and belt
• KWI rates the Fusion primary for acceleration gains, RPM control, smoother backshifting and airflow efficiency
• KWI rates the Fusion secondary for belt grip, smoother backshifting, cooler operating temperatures and consistent power transfer
• Validated by Max Gordon over three nights in the Parker desert, then refined through a further year of testing
• Hand-built in the USA from premium billet materials, per KWI
• Primary includes a Fusion Speed UTV puller; secondary includes a Fusion Kwik Lock belt change tool

Built To Solve: Belt Heat And RPM Control On The Speed UTV CVT

• Belt heat building during long high-speed, high-load runs
• RPM that wanders instead of holding steady under load
• Rough or inconsistent backshifting coming off the throttle
• A factory clutch setup you want to replace with a purpose-built billet primary clutch and billet secondary clutch, not just a weight and spring change

Best For: Speed UTV Owners Building A KWI Fusion CVT

• Owners planning an El Jefe clutch upgrade or El Diablo clutch upgrade on a machine that runs the KWI Fusion carbon clutch housing and air ducting
• Desert and dune riders who hold the CVT at high load for long stretches
• Owners upgrading in stages: buy the Speed UTV primary clutch or Speed UTV secondary clutch now and finish the system later
• On a pre-2026 Speed UTV with the earlier housing? You need KWI's Fusion Speed UTV Retro Fit Kit first; this listing does not include a housing or ducting

Specifications

• Brand: KWI Clutching
• Platform: Speed UTV
• Construction: billet primary and secondary clutches, hand-built in the USA (KWI)
• Options: Primary Only, Secondary Only, Full Fusion Package
• Primary Only includes: Fusion Speed UTV primary clutch and Fusion Speed UTV puller
• Secondary Only includes: Fusion Speed UTV secondary clutch and Fusion Kwik Lock belt change tool
• Full Fusion Package: Fusion billet primary clutch, Fusion billet secondary clutch and Fusion CVT belt
• Requires: KWI Fusion Speed UTV carbon clutch housing and air ducting configuration (not included)

Fitment

• Speed UTV El Jefe and El Diablo equipped with the KWI Fusion Speed UTV carbon clutch housing and air ducting
• 2026 Speed UTV models with the 2026 clutch housing and air ducting
• Pre-2026 Speed UTV models: require KWI's Fusion Speed UTV Retro Fit Kit (sold separately by KWI, not included here)

This is not a drop-in OEM replacement. Confirm which clutch housing your Speed UTV has before ordering; fitment is not guaranteed on unlisted applications.

FAQ

Will the KWI Fusion clutches fit my stock Speed UTV clutch housing?

Only if your machine already runs the KWI Fusion configuration. KWI states the Fusion Speed primary and secondary require the updated KWI Fusion Speed UTV carbon clutch housing and air ducting, and that they are not drop-in OEM replacements.

What does the KWI Fusion clutch system improve on a Speed UTV?

KWI lists acceleration gains, RPM control, smoother backshifting and airflow efficiency for the Fusion primary, and belt grip, cooler operating temperatures and more consistent power transfer for the Fusion secondary.

I have a pre-2026 Speed UTV. What do I need?

KWI sells a Fusion Speed UTV Retro Fit Kit for pre-2026 models that includes the carbon fiber and Kevlar CVT housing, billet Fusion primary and secondary clutches, Fusion belt, 4-inch air ducting, updated rear truss and KwikLock belt tool. That kit is a separate KWI product and is not what this listing ships.

What comes with the Primary Only and Secondary Only options?

Per KWI, the Fusion Speed UTV primary ships with a Fusion Speed UTV puller, and the Fusion Speed UTV secondary ships with the Fusion Kwik Lock belt change tool.

Can I install the Fusion clutches myself?

KWI says most of its products are DIY-friendly and every product ships with written installation instructions, with an install guide and video walkthrough on KWI's Fusion product pages. KWI also recommends its Fusion Speed primary jam nut and spider removal tool and its clutch holding tool for this job.

How is the Fusion system different from UTV clutch kits?

Most UTV clutch kits are calibrated sets of weights, springs and often a helix that tune your existing clutches. The KWI Fusion system replaces the primary and secondary clutches themselves with billet units designed alongside the housing, ducting and belt.

Why KWI Clutching

KWI Clutching builds clutch kits, Float Mod send-in services and complete clutch systems for Can-Am, Polaris, Kawasaki and Speed UTV machines. KWI describes the Fusion Speed system as the highest tier of clutching technology it has produced, developed with 3D scanning, airflow mapping and CAD modeling before desert validation.

Complete Your Speed UTV Fusion Clutch Setup

Choose Primary Only, Secondary Only or the Full Fusion Package for your KWI Fusion clutch build, then confirm your Speed UTV has the KWI Fusion carbon clutch housing and air ducting before you order. Plan for a clutch holding tool and a primary jam nut and spider removal tool for the install, and pair the upgrade with a fresh Speed UTV air filter. Not sure which housing you have? Contact us before ordering and we will help you check.