RZR Frame Tube Kit; Rear, 4 pc

Thunderhawk Performance introduces our new Expand-Lock rear frame reinforcement tube kit for the Polaris RZR. This kit includes our 4-piece Expand-Lock rear frame tube kit to strengthen the rear sub-frame on the Polaris RZR. This frame tube kit bolts-on easily in about 30 minutes and adds significant strength and rigidity to the RZR's rear sub-frame. Whether you are trail riding or jumping dunes, Thunderhawk's Expand-Lock frame reinforcement kit will add the strength and rigidity needed to attack any terrain you encounter with confidence.

Thunderhawk's new Expand-Lock frame reinforcement tube kit is designed to slide inside the thin-wall factory rear sub-frame tubes, increasing the tube thickness and strength by over 140%. By installing these frame reinforcement tubes, your RZR sub-frame will resist bending where the factory rear sub-frame tubes attach to the main frame rails and also resist flex and damage where the control arms are mounted to the factory rear sub-frame tubes.

The Thunderhawk Expand-Lock system makes installation easy, there is no welding or drilling required. Simply tighten the Expand-Lock bolt and the Thunderhawk frame reinforcement tube is secured inside the factory frame tube for a solid, bolt-in installation. Designed to allow any water that gets inside the frame tube to drain, avoiding rust and freeze damage. Zinc plated to resist rust and corrosion.

If you ride hard, the constant chassis flex and the occasional big-hit from an unexpected trail obstacle or from jumping can damage the RZR's frame. Many people are also adding lift kits, stiffer springs, aftermarket shocks and long travel kits, but ignoring the need to stiffen and reinforce the chassis. The Expand-Lock frame reinforcement tube kit is recommended for anyone who has made these common modifications, or just for people who ride hard (even with a bone-stock RZR).

Application:
Polaris Ranger RZR, 2008

Includes Thunderhawk's 4-piece Expand-Lock frame reinforcement tube kit
Significantly improves strength and rigidity of the rear sub-frame
Resists bending where the factory sub-frame tubes attach to the main frame rails
Resists flex and damage at control arm mounting points
Expand-Lock frame tubes are zinc plated to resist corrosion
Complete, bolt-on kit installs easily
Does not require welding, drilling or cutting for installation
Recommended for all RZR's with lift kit, shocks, springs or long travel
Made in USA