The Lone Star Racing Polaris RZR Pro R Trailing Arm Gusset Kit is engineered to eliminate known weak points in the factory trailing arms by adding precision-cut 4130 chromoly plates. This upgrade significantly boosts strength and impact resistance, making it essential for drivers who push their Pro R through aggressive terrain, racing conditions, or high-load desert runs. By reinforcing the structural integrity of the arms, the gusset kit helps prevent bending, cracking, and premature failure—issues commonly experienced with stock components under extreme use.
Designed specifically for the Pro R platform, this gusseting service maintains compatibility with stock mudflaps and preserves the factory fit and finish. To complete the upgrade, customers must ship their stock trailing arms to Lone Star Racing unless purchasing new arms directly. Be sure to include a copy of your web order confirmation or clearly write your order number on the outside of the shipping box to avoid processing delays.
This gusset kit delivers a professional-grade durability boost and long-term peace of mind, making it one of the most valuable reinforcement upgrades for any Polaris RZR Pro R build.
