After years of testing, development and a decade on the market, RT Pro has proven to have the best replacement spring options for today s UTV's. This kit is for the Polaris RZR XP4 Turbo (4 seat) using OEM FOX Internal Bypass shocks. This dual rate kit gives a substantial improvement in ride quality while improving handling and stability as well at G-out resistance. We've found the perfect combination of spring length to rate ratio and are very happy with our results. This kit is for all four corners of the machine. It provides a tender spring, main spring and dual crossover rings for all four shocks. Delrin adapter rings are also included for rear shocks to convert to 3.75 ID springs.
The spring kit alone can make a night and day difference in the performance of the RZR. This is enough of an improvement most recreational driver's will never need to make any other internal adjustments to the shocks and will be able to fine-tune the ride with the external adjustments provided on the OEM shocks. For the customers wanting more, contact Yokley Racing for custom valving. Note: RT Pro does not offer valving service nor do we handle the shocks for Yokley Racing. For revalving services please contact them directly.
We found there really only needed to be two rate kits needed for the 4 seat model. The Standard rate kit works great for 2-4 people without a ton of extra gear loaded beyond what the average owner takes with them for a day on the trail or dunes. The Heavy Duty kit is recommended when carrying 4 people and a lot of gear most often.
This kit fits all 2016+ RZR XP4 Turbo 4 SEAT models using OEM FOX shocks. This kit will also work on any aftermarket 2.5" front / 3.0" rear shock application.
Kit includes (8) springs, (8) spring adapters and (8) crossover rings. All springs come with silver powdercoat.
This kit is 100% MADE IN THE U.S.A.
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.
"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 competitor 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."