Maxxis Roxx Zilla Tires The 8 ply Maxxis RoxxZilla tires are designed for rocky terrain and harder surfaces. Crawl through rocks with ease with the soft rock crawling tread compound and high multi-layer sidewall design. Softer, stickier Competition compound is model Maxxis RoxxZilla #762 Tire. Features: Designed for rocky terrain, hard pack, and all-terrain duties Available in standard compound and soft, sticky Competition compound: Competition Compound: Race use, stickier compound, t echnical rock crawling, m aximum grip on slick surfaces Competition Compound: RoxxZilla #762 Tire Standard Compound: Trail riding, all-terrain applications, higher mileage, better durability on hardpack 8 ply rated radial construction High multi-layer sidewall design enhances sidewall traction for rock crawling High void ratio in center and two layers on shoulder improve grip and puncture resistance Soft rock crawling tread compound Select sizes available in competition rubber compound For off highway use only