SDI Performance Shock Spring Kit for Polaris RZR XP

The SDI Performance Shock Spring Kit is a coilover spring upgrade for UTV and side-by-side suspension. It replaces the stock shock springs with a dual-rate setup. The result is a more controlled, comfortable ride across a wide range of terrain. Whether you want a better ride for weekend trail use or more control for family riding, this kit gives you a tuned suspension without replacing your shocks.

Key Features:

• True dual-rate setup: Tender and main springs work together with crossover rings, so the suspension is plush in small chop and firm when the load builds.
• Better chassis control: Helps reduce body roll, nose dive and bottoming (G-out).
• Motocross-inspired crossover rings: They make adjustment and installation easier.
• Quality springs: SDI worked with a top spring manufacturer. The springs are designed to resist deflection, which keeps spring rate consistent and makes rubbing against the shock body less likely.
• Made in the USA: Each kit is fine-tuned and tested to improve ride quality.

This is a bolt-on upgrade that can be installed with common hand tools. SDI (Suspension Direct) is known for UTV suspension components developed with racing experience. Each kit is built for riders from casual weekend users to serious racers.