Polaris RZR PRO XP High Clearance Boxed Radius ArmsThe Strongest Radius Arms You Can Get The PRO XP is built to go anywhere, which is why getting your radius arms caught on rocks and branches can be such a bummer. You know that gut wrenching thud that comes when something smacks your radius rods all too well. We made our High Clearance Boxed Radius Arms for extra ground clearance, extra strength, and dead sexy style. Theyre not likely to get caught on anything, and if they do, you can count on them to