XP1000 STS Upper Radius Rods

The Lone Star Racing STS Upper Radius Rod Kit for the Polaris RZR XP1000 is a heavy-duty upgrade designed to eliminate the weaknesses of the factory upper radius rods. Built from 4130 chromoly steel and equipped with durable 5/8" rod ends, this kit delivers improved strength, adjustability, and long-term reliability for aggressive riding and racing applications.

Factory radius rods are prone to flexing and wear under hard use. Lone Star Racing solves this issue by using high-quality chromoly tubing and premium heims to maintain alignment, reduce suspension deflection, and withstand harsh off-road abuse. These upper radius rods are adjustable, allowing you to fine-tune suspension geometry while keeping stock width and factory mounting points.

Designed as a direct bolt-on replacement, this kit is ideal for trail riders, desert riders, and racers who want stronger components without changing vehicle width or geometry.

🛠️ Key Features & Benefits

• Stronger replacement for OEM upper radius rods
• Maintains factory suspension geometry
• Improves rear-end stability and alignment
• Adjustable design for precise setup
• Built for aggressive off-road riding and racing

🔩 Construction & Design

• 4130 chromoly steel construction
• Fully TIG welded for durability
• 5/8" heavy-duty rod ends
• Adjustable length for alignment tuning
• Designed for long service life

📦 Kit Includes

• (2) Upper radius rods
• Pre-installed rod ends

🚙 Vehicle Fitment

• Polaris RZR XP1000
• Fits stock width suspension
• Direct OEM replacement
• STS suspension compatible

⚠️ Important Notes

• Sold as a pair (upper radius rods only)
• Professional installation recommended
• Alignment required after installation
• Designed for off-road use

🏁 Why Choose Lone Star Racing STS Radius Rods?

Lone Star Racing components are race-tested and trail-proven, offering strength and reliability that OEM parts simply can’t match. The XP1000 STS Upper Radius Rod Kit is the perfect solution for riders looking to upgrade weak factory components without changing suspension width or layout.

Instructions: RZR_XP1K_Radius_Rods.pdf (shopify.com)