Extra Chassis Support It™s time”time to master the bounty the hole that put you under last year. With bigger tires, portals, and SuperATV™s Polaris RZR 900 Frame stiffener supporting your stock frame, there™s no way that bounty hole stands a chance. Provides extra support for your frame's weak points Made of 4.5 mm steel plating Perfect for lifts, big tires, and portals Big Tires, Portals, and Lift Kits If you want to do the impossible, you'll need the biggest and baddest RZR at the ride park. By adding a frame stiffener to your machine, you can add the biggest accessories you can find without worrying if your stock frame can handle the extra weight. Tough Terrain Calls for Superior Construction You can count on this frame stiffener to do its job. It™s super strong and made from 4.5 mm steel. It™s even powder coated for extra durability. This frame stiffener can handle the wildest rides and toughest terrains.