Aftermarket Assassins S4 Recoil Clutch Kit | 2018+ RZR RS1 Aftermarket Assassins

Aftermarket Assassins Stage 4 Recoil Clutch Kit for 2018+ RZR RS1 

This kit is normally for those who have clutches that are worn out. Let us know your exact model, modifications, and tire size. We’ll set your clutches up so they are ready to bolt on. Keep in mind vehicles vary so while they come set up, some minor weight adjustments might be necessary. Always verify your peak RPM after installation. Aftermarket Assassin’s designed/tested/inspected high-quality replacement clutches.

Our S4 recoil 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. 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 gained from our clutch kits!

S4 kits include our custom-cut helix which will give you better power to the wheels because of the angle change which directly relates to how hard we shift the secondary clutch.  Factory helixes start off steep, then go shallower on the top end. In our testing, we found this to be too drastic of a change and picked up some big performance by changing this angle.  Choose the trail or race kit. Trail kits have a smooth engaging spring, while race kits have a higher and more harsh engagement for better holeshots. Consistently gained 2-3 RWHP and brought the power on quicker Kits work great with both stock or modified machines A must-have when tuning your RS1 A must-have when running larger tires or paddles Huge acceleration gains Wicked throttle response when on & off the throttle More efficient power transfer to the wheels More consistent clutch performance Cooler running belt temps (especially when running larger tires or paddles!) Longer belt and clutch life are Easily adjustable if needed Please see helix options below: Torsion Anti-Chatter Kit: Upgrades to a complete secondary converted to a Torsion style spring and helix. The main benefit is better belt grip with the Torsion spring that gains rate as it shifts.

Constant pressure against the helix buttons for less annoying secondary clutch chatter which also extends the life of the buttons. You’ll also notice smoother engagement which is excellent for those crawling. Secondary bushing comes peened over to prevent walking out. The Torsion kit slightly limits top speed and should be used with the AA primary clutch limiter. 80-85 MPH top speed for most models. Performance Helix 1031/Torsion 1026: The performance angle is what 90% of users will want.  It offers great power transfer to the wheels that will take off and keep pulling hard. Use this with tires 27″ to 32″ and you will adjust the weights to make up for different tire sizes. High Load Helix 1021/Torsion 1032: If you are using very large tires, the high load helix might be the choice for you.  The high load helix is recommended for those turning 34″ tires, or 31-32″ paddles.  The high load helix can be used with any tire size 29″ and greater if you are just after belt life, and performance is not your priority.  

The performance angle can still be used with the larger tires and paddles if all-out performance is what you are after, just keep in mind belt life will be less than with our high-load setup. 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 modifications 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 the best performance for your application. While this clutch comes pre-set, a setup guideline is included which shows the best setups for dunes, mud, or all-around trail riding. This also has brief instructions on installing your clutch kit, and other important information.

While it is on an RZR turbo(same clutches), you can view our installation instruction video HERE

Do you ride trails and dunes? While our weights are adjustable to compensate for nearly any condition, swapping a primary spring to gain RPM lost in the dunes is much simpler. Some may want our TEAL PRIMARY SPRING which increases peak RPM by 200-300, which is what is normally lost with paddle tires/sand. This teal spring normally engages around 2100-2300 RPM which is slightly higher than our standard spring, but not crazy high or uncontrollable. Kits include Both primary and secondary with the following installed: Aftermarket Assassins Recoil magnetic adjustable clutch weights, primary spring, Aftermarket Assassinsprimary limiter, secondary spring, Aftermarket Assassins custom helix & setup guidelines/instructions.

The only tool needed is our Compression Tool #1.  The primary components can be done with the clutch on the machine.  If you’d like to pull the primary to check the bolts behind it, or just to make installation easier, use this CLUTCH PULLER.  

Warning: many of the XPT primary clutches are on the crank very tight(tapered fit).  If removing the primary, make sure you use plenty of grease on the puller tip and threads.  A hammer might be needed to pop the clutch off. We’d HIGHLY recommend using our Snap Ring Delete Kit when installing this kit on 2018 models.  Makes life much easier!

We also recommend our Revolver Billet Clutch Cover with Tower Lock to increase primary clutch strength and cooling. (Note, will NOT fit with the aftermarket Assassins Primary Clutch Fan Blade) Don’t forget a new belt and we have the Worlds Best Belt by Gboost (our Stryker) Part number: 116-1014

 Fits all 2018-22 RZR RS1 models. Complete clutches are assembled with our Aftermarket Assassins performance clutch kit parts.

**Kits are built to order with a  1-3 Day Lead Time**