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Ride Improvement System (RIS) for RZR XP4 900 CALL FOR AN APPOINTMENT

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  • Our RIS kits are good enough for UTV magazine, they are good enough for YOU too
  • Custom xp4
  • TMW relies on our RIS kits to give their customers the best possible ride!

 Product Description

Call us Prior to ordering this system as you must ship your shocks to us.


Why do stock UTV’s ride the way they do? Skip to the bottom to find out why.


Stage 1: The stage one Ride Improvement System is where we dig into the heart of your shocks. We change quite a few things inside the shocks (list below) all of which are designed to make the chop, chatter and wash board go away and become extremely plush. Rear bucking is eliminated. One to two foot whoops become flat and level at high speeds and bottom out resistance is doubled to keep you from bottoming out when jumping or running the largest dunes. Basically, your car is more plush where you WANT it to be and stiffer where you NEED it to be. To maximize the stage 1 internal valving, a Shock Therapy dual rate spring kit is highly suggested. ****749.95***


Stage 1 modifications:


  • Parts that can be modified or machined


  1. Piston
  2. Shaft
  3. Lower Loop
  4. Bump Stops
  5. Adjusters
  6. Bypass tubes
  7. Extension Spring Slider
  8. Valving


***** Internal Modifications vary dependent on application of riding and shock type******


Stage 2: Included with the stage 3 is a TRUE dual rate spring kit! Some of the benefits from the Shock Therapy dual rate spring kit are more bottom out resistance, gain in ride height, more plush over the washboard chatter and reduced rear bucking.


****Fox: $1499.90/ Walker Evans $1609.25****


  • Lifetime Warrantied
  • Made in the USA
  • Tailored to your UTV specifics and driving style


     Have you ever wondered why UTV manufacturers don’t maximize the potential of the factory suspension? It is not because they don’t want to, that is for sure. One huge reason is they have to pass the Federal Motor Vehicle Safety Standard (FMVSS) ground safety testing which includes a 25mph roll over test on asphalt. Manufactures are often forced to stiffen up the suspension, change springs or lower the car to pass these tests. OEM shock companies have their hands tied with regard to suspension set up since their parameters are dictated by the manufacture who have to pass these tests. Another issue is the OEM has to create a set up that works for MOST customers, forcing a one size fits all product.


     This is where Shock Therapy comes in. We are able to unlock the hidden potential of the factory suspension that the OEM’s are forced to leave on the table. Furthermore, we can tailor the suspension specifically for your driving style, terrain and accessories where the OEM can’t possibly go. If you want the most plush ride quality possible while eliminating all bucking and bottoming out then you have one place to go, Shock Therapy.



 Other Details

11-13 XP 900

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