SDI Heavy Duty Spring Kit for the 2025+ Polaris RZR XP S 4 Seater

Take the guess work out of getting more out of your UTV’s Shocks. SDI’s Spring Kits have been fine tuned and tested to improve your vehicle’s ride.

• For use on 2025+ Polaris RZR XP S 4 Seater Vehicles
• Gives your RZR a true dual rate setup, utilizing both springs. 
• Greatly reduces body roll, nose dive (Bucking), and bottoming (G-Out Resistance) 
• Kit Includes: 4 Tender Springs and 4 Main Springs
• Available in Performance and Heavy Duty
• Made in the USA

Take the guess work out of getting more out of your Xpedition stock Shocks. SDI’s Spring Kits have been fine-tuned and tested to improve your vehicle’s ride.

• For use on Fox Equipped Polaris Xpedition
• Single rate spring gives you a linear stroke filling in the gap of the middle of the shock
• Single rate spring greatly increases body control of the top heavy Xpedition
• Available in Performance, Heavy Duty, and Long Travel Applications
• Improves ride quality over the small chop, while being able to handle the larger G-Outs.
• Reduces nosedive (Bucking), and increases G-Out Resistance
• Kit Includes: 4 Main Springs, 4 Spring Cups, and 2 Shock Guards
• Made In the USA

For even more performance, pair with an SDI Revalve! Highly recommended for heavy or long travel applications.

Take the guess work out of getting more out of your UTV’s Shocks. SDI’s Spring Kits have been fine tuned and tested to improve your vehicle’s ride.

• For use on Fox Equipped Vehicles
• Available in Performance & Heavy Duty
• Greatly reduces body roll, nose dive (Bucking), and bottoming (G-Out Resistance)
• Kit Includes: 4 Main Springs
• Made In the USA