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Primary and secondary clutch will come assembled if you let us know your tire size and modifications. Not every vehicle is the same, so even if having us professionally set the clutch up, some adjustment may be needed. Always make sure to check peak RPM after installation.
HD primary clutch uses hardened rollers and our hardened weights for better clutch longevity, and better operation. This is an upgrade from the OEM design that uses plastic hex "rollers" and soft metal weights.
Our X3 S4 clutch kits pack a huge punch! No matter the terrain, they hit hard and just keep pulling for days. On the trail or at the race you'll notice wicked acceleration and instant clutch response when getting back into the throttle after hammering that corner. In the dunes you'll see the same benefits, but also have much less bogging when climbing that big dune. The machine will hold RPM so you can get where you need to go, and get there faster! Going mudding? Our mud setup will help turn those tires through the thick and deep with much better RPM and wheel speed that's key to climbing out of that hole. Are you a rock crawler? Our smooth engagement and precise feel down low will give you the confidence to tackle any obstacle. We have a huge amount of CVT knowledge, a great passion for the sport, and spent many hours testing different setups in the real world. We know you'll be extremely pleased with the performance gain from our clutch kits!
With our clutches you'll notice better power transfer (better acceleration) and lower belt temps than your OEM clutch or other aftermarket clutches.
Big performance gains as these 3 cylinder motors love to rev! The factory clutches these heavy, making them ramp up RPM slowly. Once you ride a properly clutched X3 that ramps up RPM quickly, you'll see the major difference. This comes into play if you are running heavier tires, riding dunes, or tune your X3. Allowing RPM to ramp up quickly is a massive difference and if your tunes are built like ours, they love to rev higher and that makes them accelerate much faster.
Our custom cut fully adjustable helix in this kit is a game changer! We have been using this quick click secondary design on many other vehicles since 2008, and have now adapted to the X3 platform. This helix angle is much better for acceleration as it allows RPM to ramp up quicker out of the gate, then load the motor hard up top for wicked acceleration. The best part about this helix is the ability to adjust your spring tension. This easily allows you to dial in RPM with the secondary clutch which is much easier than adjusting the X3 primary. See the helix install/adjustment HERE
Helix Choice: Keep in mind the helix is controlling how fast the secondary clutch shifts. A lighter, more powerful vehicle can shift faster with the Performance Helix without slowing down/bogging the engine. A heavier vehicle/heavier tire setup benefits from the High Load helix as it slows the shift down vs. the performance helix, so RPM can ramp up faster. Neither helix is faster for everyone, but the right helix choice will make your vehicle perform the best. The shift rate is somewhat adjustable by the secondary spring adjustment, but you still want to choose a helix that is right for your setup. Feel free to message us if you have questions on this.
Our Recoil clutch weights are easily adjustable with simple magnets. They have a custom AA profile, the BEST coating on the market (nitrocarburizing) which has increased wear resistance, improved fatigue strength, and added surface lubricity. These clutch weights also offer great performance, and the ability to tune for many different applications or modification in the future, without the need to buy extra parts. The magnetic weights are the best option to properly place the mass where we need it on the weight for best performance for your application.
Highly recommend installing a new belt at the same time, we have the World's Best Belt (Our Stryker)
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