RT Pro introduces an amazing blend of ride quality and performance for the 4 seat RZR XP4 900. Our Dynamic Inertia Spring System (D.I.S.S.) has been proven for years in other replacement spring kits we sell and seems to get better and better for each model that comes out.
This kit is a complete set of dual rate springs for the front and rear which are 2.5Ã¢€Â I.D. front and 3.0" I.D. rear. This makes this kit universal to all aftermarket 2.0" front / 2.5" rear or equivalent shocks so if you ever decide to upgrade to aftermarket shocks you don't have to buy shocks with springs. You can take your RT Pro springs with you! Good thing too because this spring kit is constantly being proven to be a better setup than even the aftermarket shock companies can provide with their shocks.
This kit includes adapter rings for the front shocks which convert the OEM upper and lower spring retainers from a 3.0Ã¢€Â ID set up to the 2.5Ã¢€Â springs that come in this kit. The rear springs do not require adapters. The kit also includes RT ProÃ¢€â ¢s Delrin spring spacers. These are designed to slide up and down the body of the shock straight and true for a long time due to their precision design and high quality American material.
Standard - This rate is perfect for all dune and trail use. We've found this option works for almost everyone. The ride height should be about the same as stock and the ride quality when driving slow is very similar but a little firmer. The bottoming and bucking is greatly reduced and the handling is vastly improved when driving with two or 4 people. This rate will also support some extra cargo and accessories.
Heavy Duty - This rate is only needed for machines carrying LOTS of extra weight. These are meant for desert race cars and very loaded down machines with 4 full size passengers all the time or a bunch of extra accessories, gear, spare tire, gas cans, etc. This kit is designed to maintain ride height with a full load. It may sit a little taller without a large load but the ride will be firm.
This kit fits all year (2012-2014) RZR XP4 900 4 seat models with Walker Evans shocks. This does not work for XP 2 seat models! However, these WILL fit the Jagged X model.
In over a decade of selling OEM replacement springs we've found our kits are more than enough for 80% off all UTV owners to be completely happy with their suspension. For the remaining 20% we recommend revalving or completely new shocks. The 20% is made up of extremely hard drivers who spend a lot of time in their UTV either racing or riding hard every weekend. For the average trail rider who goes once or twice a month revalving really isn't needed with our springs. Unlike any other kit on the market, our kits are designed to optimize the OEM valving.
For the ultimate performance from the OEM shocks, add these springs and contact William Yokley of Yokley Racing in Kentucky for revalving. William has been building shocks for years and knows how to make them work for each application. He's a 5 time GNCC national champion UTV racer and also has a WORCS UTV championship as well as many other racing successes to back up his knowledge and ability to make a UTV work right on the track or the trail. We've tried a lot of "shock guys" and William is who we trust. He will get you what you need at a very fair price. For William's contact info feel free to message us through our contact page and we'll get you connected.
Note: The rear spring protectors can be retained with this kit.
This kit is 100% MADE IN THE U.S.A.
Kit includes (8) springs, (4) adapter rings and (2) front spring spacers. *NOTE* - OEM rear spacers are re-used.
All springs come with silver powdercoat.
"It's hard to say what's the best when you've only tried one. At RT Pro we believe we have the best spring replacement kit in the world and are willing to put our money where our mouth is. If you have a competitorÃ¢€â ¢s spring kit and want to try ours, buy it. If you don't feel our springs are better than what you have you can send them back for a 100% refund."