RZR Pro R 4 Stage 1 Spring Kit – Fox Dynamix by ZBroz Racing

Unlock the full performance of your Polaris RZR Pro R 4-Seat with Fox Dynamix Live Valve shocks. The ZBroz Stage 1 Dual Rate Spring Kit delivers race-inspired handling without a full shock revalve — improving comfort, control, and bottoming resistance across desert, dune, and trail terrain.

Tuned specifically for the 4-seat Pro R chassis weight and Fox Dynamix shock geometry, this kit also compensates for the added load of cages, roof racks, winches, and full crew loads — so your ride stays composed whether you're solo or hauling four passengers.

Key Features

• Dual Rate Spring Technology — combines low-speed plushness with high-speed control
• Tuned for 4-Seat Pro R Chassis — handles the heavier wheelbase and crew load
• Fox Dynamix-Specific Fit — matched to factory Fox Live Valve Dynamix shock geometry
• Reduced Body Roll & Rear Bucking in corners and over washboard chop
• Increased Bottom-Out Resistance for jumps, g-outs, and aggressive landings
• High-Tensile Lightweight Springs — durable without the weight penalty

Specifications

• Stage 1 dual rate spring kit (front + rear)
• Designed for OEM Fox Dynamix Live Valve shocks
• High-tensile silicone chrome wire construction
• Powder-coated finish
• Tuned for 4-seat Pro R chassis weight
• Designed and manufactured by ZBroz Racing in the USA

Fitment

• Polaris RZR Pro R 4-Seat (2022-2025)
• Equipped with Fox Dynamix Live Valve shocks only
• Not compatible with Walker Evans or non-Dynamix shock systems

FAQ

Will this kit fit my Pro R 4 with Walker Evans shocks?

No. This kit is tuned specifically for Fox Dynamix Live Valve shocks on the Pro R 4. ZBroz offers a separate Walker Evans-compatible spring kit for the same chassis.

Does this kit work with stock Dynamix electronic controls?

Yes. The dual rate springs work seamlessly with the factory Dynamix Live Valve electronic damping system — no controller modifications required.

Will it fit the 2-seat Pro R?

No. This kit is rated for the 4-seat chassis weight. The 2-seat Pro R uses the dedicated ZBroz Pro R 2-Seat Fox Dynamix spring kit.

How long does installation take?

Plan 2-3 hours per side with basic shock service tools and a spring compressor. ZBroz includes setup instructions, and Dunes 2 Dezert SXS can recommend a local installer if needed.

What's included in the kit?

Front and rear dual rate springs tuned to the Pro R 4 chassis. Shocks and shock hardware are not included — the kit installs over your existing Fox Dynamix shocks.

Why ZBroz

ZBroz Racing is a Utah family-owned suspension manufacturer with decades of experience tuning UTV chassis. Every spring rate is developed in-house and proven in real desert and dune conditions before it ships. The Pro R 4 dual rate kit reflects multiple seasons of race-bred refinement — a cost-effective alternative to revalving or replacing your factory Fox Dynamix shocks.

CTA

Restore ride height, sharpen handling, and unlock real performance from your Pro R 4. Order the ZBroz Stage 1 Dual Rate Spring Kit (Fox Dynamix) today. Order from Dunes 2 Dezert SXS.

Install Video

Watch the official ZBroz Racing install walkthrough for the Polaris RZR Pro R Fox Dynamix (Live Valve) Stage 1 Dual Rate Spring Kit. The same install procedure applies to both 2-seat and 4-seat Pro R chassis.