RZR XP900 STS Radius Rod Kit
The Lone Star Racing STS Radius Rod Kit for the Polaris RZR XP900 is a heavy-duty, adjustable suspension upgrade designed to replace the weak OEM upper and lower radius rods with race-proven chromoly strength.
Built from 4130 chromoly steel, these radius rods are engineered to handle aggressive trail riding, desert abuse, and racing conditions while maintaining proper rear suspension geometry. Unlike factory rods, the STS radius rods are fully adjustable, allowing you to fine-tune alignment and correct wheelbase changes caused by hard use or suspension upgrades.
This kit is a direct bolt-on replacement for the factory upper and lower radius rods, making installation straightforward while delivering a significant improvement in durability, reliability, and performance.
🛠️ Key Features & Benefits
- Direct replacement for OEM upper and lower radius rods
- Adjustable design for precise alignment and setup
- Increased strength over factory components
- Improved rear suspension control and durability
- Ideal for aggressive riding and race applications
🔩 Construction & Design
- 4130 chromoly steel construction
- Precision TIG-welded for maximum strength
- Adjustable rod ends for fine alignment tuning
- Built to withstand hard off-road abuse
- Race-tested Lone Star Racing design
📦 Kit Includes
- (2) Upper radius rods
- (2) Lower radius rods
- Adjustable hardware pre-installed
🚙 Vehicle Fitment
- Polaris RZR XP900
- Designed for stock-width STS suspension setups
- Direct OEM bolt-on fitment
⚠️ Important Notes
- Alignment recommended after installation
- Sold as a complete upper and lower radius rod kit
- Professional installation recommended for best results
- Designed for off-road and racing use
🏁 Why Choose the Lone Star Racing XP900 STS Radius Rod Kit?
OEM radius rods are a known weak point on the Polaris RZR XP900. The Lone Star Racing STS Radius Rod Kit solves that problem by delivering adjustability, strength, and reliability in one proven package. Whether you’re rebuilding your rear suspension or upgrading for harder riding, this kit provides confidence and control where it matters most.
Upgrade your XP900 the right way with Lone Star Racing STS Radius Rods—built to last, built to perform.
