SDI Stage 1 Spring Kit for the 2018-20 Polaris RZR RS1

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 Polaris RS1 Vehicles
• Gives your RZR a true dual rate setup, utilizing both springs. 
• Greatly reduces body roll, nose dive (Bucking), and bottoming (G-Out Resistance) 
• Motocross-inspired crossover ring for easy adjustments and installation
• Kit Includes: 4 Tender Springs, 4 Main Springs. 4 Crossovers
• Made in the USA

- Improved Strength and Durability over stock
- Heavy Duty equipment replaces OEM rods and hardware
- Race Proven, Race Winning performance
- Flats on rods allow for easy adjustment
- Made in the U.S.A.
- Comes with all necessary parts for installation: Rods, Rod Ends, Misalignment Bushings

- New for 2025 now comes with 28mm "Big Ball" inner tie rod providing Superior Strength and Increased Resistance to wear
- Improved Strength and Durability over stock
- Heavy Duty equipment replaces OEM rods and hardware
- Race Proven, Race Winning performance
- Flats on rods allow for easy adjustment
- Made in the U.S.A.
- Includes all necessary Rods, Inner Tie Rods, Heims, pins, and Misalignment bushings for fitment

- Improved Strength and Durability over stock
- Heavy Duty equipment replaces OEM rods and hardware
- Race Proven, Race Winning performance
- Flats on rods allow for easy adjustment
- Made in the U.S.A.
- Comes with all necessary parts for installation: Rods, Rod Ends, Misalignment Bushings

SDI High Low Speed Adjuster for Walker Evans Shocks

- For Walker Evans 2.5 Shocks
- Game-Changing Seperate High/Low Speed Compression Adjustment
- Address the walloy feeling while cornering, without losing plushness over breaking bumps & square edge bumps. This maximize compliance and traction, without the worry of not being able to soak up big hits.
- "Feel" the adjustments you make through motocross style clickers, making for easy on the fly adjustments
- Made in the U.S.A.
- Installation tools: Click Here

Polaris RZR 1000 Clutch Alignment Tool - Main Crossmembers

• Crucial for properly aligning the shafts between the motor and the transmission.
• Unlike other tools on the market, the SDI Tool checks the engine and transmission alignment in every degree of freedom.
• Sold as individual pieces

Polaris RS1 Cage Bung Kit

• Designed to fit all of the cage mounting locations on Polaris RS1
• Premium machined Cage Bungs for betterwelds and adhesion, less likely to crack.
• Designed for 1.75" Tubing
• Predrilled for wiring
• Includes 4 "A" Pillar Bungs, 2 "C" Pillar Bungs
• Hardware not included
• Machined in the USA

Polaris RZR Clutch Alignment Tool - 2014+ Engine Shaft (NOT RZR/RANGER 900)

• Crucial for properly aligning the shafts between the motor and the transmission.
• Unlike other tools on the market, the SDI Tool checks the engine and transmission alignment in every degree of freedom.
• Sold as individual pieces

Polaris RZR 1000 Clutch Alignment Tool - 2016+ Transmission Shaft

• Crucial for properly aligning the shafts between the motor and the transmission.
• Unlike other tools on the market, the SDI Tool checks the engine and transmission alignment in every degree of freedom.
• Sold as individual pieces

SDI Crossover Rings for 2.0" Shocks

- Sold in pairs
- For use on 2.0 Shocks with Standard Threads
- Gives your RZR a true dual rate setup, utilizing both springs
- Greatly reduces body roll and nose dive
- Single most cost effective suspension upgrade
- Durable  Motocross-inspired ring for easy adjustments
- One piece metal design allows for easy installation and adjustment: Simply remove springs.
- Made in the USA