The Rock Grabber Tires from HPI Racing are high grip tires designed for crawling on rocky terrain. These tires are molded with HPI’s sticky S compound rubber and provide excellent grip on all kinds of rocks. The blocky tread pattern wraps around the sidewall of the tire for extra grip required in challenging conditions. These are true bead lock tires, made to fit HPI rock crawling wheels using 6-hole bead lock rings to keep the tire securely mounted on the wheel which eliminates the need for messy super glue.