Polaris Pro XP Fox Live Valve Dual Rate Spring Kit
UT-SPK-DR-PROXPFOXLIVE
This is a true dual-rate spring kit with adjustable crossover collars from Schmidty Racing Suspensions for the Polaris PRO XP Ultimate and PRO XP4 Ultimate with Fox Live Valve Shocks. Our spring kits feature top of the line Swift brand springs which replace the low quality / saggy / poor riding OEM springs. Ask our competitors what springs these use as many will not be able to claim using Swift springs. The sliders that we include in this kit are a thicker wall material than what comes factory from Polaris and will not breakdown like the OEM ones.
ON 2023 MODELS, MAKE SURE WHEN SELECTING THIS OPTION THAT YOUR VEHICLE CAME FROM THE FACTORY WITH CROSSOVER RINGS AS THIS OPTION DOES NOT INCLUDE THEM.
This kit will only fit Fox Live Valve Shocks that come standard on Polaris Pro XP Ultimate and Pro XP4 Ultimate editions. This kit will not work or fit Walker Evans shocks. If you have an XP Pro with Walker Evans please purchase through our other item listed.
With our dual rate spring kit you can expect to:
- Regain lost ride height.
- Receive a truly plush ride eliminating most of the trail chatter feedback you get from embedded rocks, ruts, tree roots, tire tracks, etc. with the lighter initial spring rate of both springs active.
- Superior bottoming resistance when the spring separator contacts the crossover collars and engages the heavier main spring solely for the remainder of the shock stroke.
The beauty of this kit is that it is truly adjustable! The threaded crossover collars can be infinitely adjusted "up" or "down" on the shock body thread, to set the point in the stroke where the spring separator contacts the cross-over collars and engages the heavier main spring solely for the remainder of the shock stroke. Either hardware style of our spring kits are totally user friendly and require no shock modification to install. Installation only requires basic tools and 3-4 hours time. Our dual rate spring kits come with a detailed and complete, step-by-step installation instruction sheet with settings, diagrams, and photos.
Full Replacement Spring Kits Include:
- (1) Installation Instruction Sheet
- (4) Upgraded Delrin Spring Separator / Slider
- (4) Threaded Locking Crossover Collar (2023 OPTION WILL NOT INCLUDE THESE)
- (2) 2 Piece Crossover Collars for the Rear (2023 OPTION WILL NOT INCLUDE THESE)
- (8) Quality Swift Springs (4 tender & 4 main springs) * Each kit does all four (4) front and rear shocks*
Experience the Schmidty Racing Difference
At Schmidty Racing Suspensions, we don't just build spring
kits—we engineer premium solutions for serious riders. Every kit we offer is
built-to-order using only the highest-quality springs from the industry
leading Swift Springs. While we may not be the cheapest, we're
committed to delivering unmatched performance, precision, and durability—backed
by years of R&D and real-world testing.
What sets us apart? Each kit includes customized
installation instructions tailored specifically to your vehicle and
setup—not a generic video or PDF that leaves you guessing. This attention to
detail ensures a faster, smoother install and a better ride from day one.
Many of our customers first tried competitors' kits—only to
be disappointed by mediocre results. Once they switched to Schmidty Racing, the
difference was clear. They don't just notice the upgrade—they feel it.
If you're serious about suspension and want the best spring
upgrade on the market, don't settle. Choose Schmidty Racing
Suspensions—because performance matters.
And if you're shopping around, we encourage you to ask other
companies what springs they use. At Schmidty, we're proud to tell you: we only
use the best. No secrets. No compromises.
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