SuperATV POLARIS RZR RS1 FRAME STIFFENER / GUSSET KITSKU : FS P RS1 01 Brand: SuperATV Description: Why We Make It When you upgrade your Polaris RZR RS1 with a big lift, bigger tires, and some extra gear, your frame will start to buckle with every bump and bounce. Thats why you need SuperATVs frame stiffener. It adds much needed reinforcement to your frame so it doesnt bend with all the extra weight. Go BIG With a frame stiffener installed, you can go as big as you want. Get a portal gear lift, monster