SDI Dual Rate Shock Spring Kit for Polaris RZR XP Turbo & XP 1000 (4-Seat)
Product Description
The SDI dual rate shock spring kit for Polaris RZR XP Turbo and RZR XP 1000 four-seat models is designed to dramatically improve suspension performance, stability, and ride comfort. Through extensive testing and tuning, SDI engineered this spring kit to convert factory suspension into a true dual-rate spring setup, allowing both tender and main springs to work together throughout suspension travel.
Dual-rate spring systems allow the suspension to absorb smaller bumps smoothly while providing additional support during larger impacts. This improves overall ride quality while maintaining stability across rough terrain.
The SDI spring kit helps reduce body roll, nose dive (bucking), and harsh bottom-outs (G-outs), improving driver confidence and suspension control during aggressive riding conditions such as desert runs, dunes, and technical trails.
Each kit includes durable motocross-inspired crossover rings that allow riders to easily adjust when the secondary spring engages. This makes suspension tuning simple while providing flexibility for different terrains and riding styles.
Built using high-quality materials and manufactured in the USA, the SDI shock spring kit is designed for long-lasting durability in demanding off-road environments.
Key Features
• Converts factory suspension to a true dual-rate spring setup
• Fine tuned and tested to improve ride quality
• Helps reduce body roll and nose dive (bucking)
• Improves resistance to bottoming out during hard impacts
• Enhances suspension performance across rough terrain
• Durable motocross-inspired crossover rings for easy adjustment
• Allows riders to fine-tune suspension engagement points
• Made in the USA for durability and performance
Kit Includes
Tender Springs — Qty 4
Main Springs — Qty 2
Crossover Rings — Qty 4
Benefits of Dual Rate Suspension Springs
Dual-rate suspension springs improve how your suspension reacts to both small bumps and large impacts.
Advantages include:
• Improved small bump comfort
• Increased stability during high-speed driving
• Reduced suspension bottom-outs and G-outs
• Improved traction and suspension control
• Better overall ride quality on rough terrain
Fitment
Compatible with Walker Evans Racing shock-equipped vehicles, including:
- Polaris RZR XP Turbo (WER) – 4 Seat
- Polaris RZR XP 1000 – 4 Seat
Part Number: UDCSKHD-TW
Frequently Asked Questions
What is a dual-rate spring setup?
Dual-rate springs combine a softer initial spring with a firmer secondary spring to improve comfort on small bumps while providing additional support during large suspension impacts.
Are these springs compatible with factory shocks?
These springs are designed specifically for Walker Evans Racing shocks found on select RZR XP Turbo and XP 1000 models.
Will this improve ride quality?
Yes. Dual-rate springs improve suspension response, reduce harsh impacts, and increase vehicle stability.
Are the springs adjustable?
Yes. The included crossover rings allow you to adjust when the secondary spring engages depending on riding conditions.
Upgrade Your RZR Suspension
Upgrade your Polaris RZR XP Turbo or XP 1000 4-seat suspension with the SDI Dual Rate Shock Spring Kit to improve ride quality, stability, and suspension performance.
Shop performance suspension upgrades today at Dunes 2 Dezert SXS.
