Support Your RZR Stock Frame By adding SuperATV™s Frame Stiffener to your Polaris RZR XP 1000, you™re laying the groundwork for going big. We™re talking big tires, big lifts, and big portals. Your stock frame just isn™t cut out for that kind of weight. Our frame stiffener will support your stock chassis' weak points. Provides extra support for your frame's weak points Made of 4.5 mm steel plating Perfect for lifts, big tires, and portals Go Big or Go Home Once you™ve taken care of the weak spots in your RZR™s frame, you can add the biggest suspension upgrades you can think of. Whether you're thinking about rocking monster tires, an 8 lift kit, or even a GDP portal gear lift (or why not all three?), our frame stiffener guarantees your RZR XP 1000 can handle the load. Unmatched RZR XP 1000 Strength This frame stiffener has a big job to do. That's why we made it from 4.5 mm thick steel and hard coated it for long-lasting durability. You can ride for years without seeing rust or corrosion.