RZR Turbo STS Upper Radius Rods

The Lone Star Racing STS Upper Radius Rod Kit for the Polaris RZR Turbo is a heavy-duty upgrade designed to eliminate the weaknesses of factory radius rods. Built for aggressive riding, racing, and high-horsepower applications, these upper radius rods deliver increased strength, precise adjustability, and long-term reliability.

Constructed from 4130 chromoly steel, these STS upper radius rods are significantly stronger than OEM while maintaining proper suspension geometry at stock width. The use of durable 5/8" chromoly rod ends allows for fine toe and alignment adjustments while improving overall suspension stability under hard acceleration, braking, and cornering loads.

Whether you’re pushing your Turbo through desert terrain, high-speed trails, or race conditions, these radius rods provide the confidence and control required to keep everything properly aligned.

🛠️ Key Features & Benefits

• Heavy-duty upper radius rod upgrade for Polaris RZR Turbo
• Stronger than OEM radius rods
• Adjustable design for precise suspension alignment
• Improves rear-end stability and durability
• Ideal for aggressive trail riding and racing
• Direct replacement for factory upper radius rods

🔩 Construction & Materials

• 4130 chromoly steel construction
• 5/8" heavy-duty chromoly rod ends
• TIG welded for strength and reliability
• Built to withstand high-load off-road conditions

📦 What’s Included

• (2) Upper radius rods
• Pre-installed 5/8" rod ends
• Hardware as required

🚙 Vehicle Fitment

• Polaris RZR Turbo
• Fits stock width suspension

⚠️ Important Notes

• Sold as a pair of upper radius rods
• Professional installation recommended
• Alignment required after installation
• Off-road use only

🏁 Why Choose Lone Star Racing?

Lone Star Racing suspension components are race-proven and built for abuse. The STS Upper Radius Rod Kit for the Polaris RZR Turbo delivers superior strength, adjustability, and confidence—whether you’re chasing speed, durability, or both.