QuikGel polyurethane solid liner seals most punctures up to 516 in. QuikGel is ideal for preventing flat tires on ATVs as well as on construction, farm/ranch and all-terrain utility vehicles. The self-sealing gel is centrifugally cast, balancing the tire to ensure a smooth ride. QuickGel offers protection and true sidewall coverage to the middle of the sidewall as well as extra shoulder coverage for lateral punctures, optimized coverage in high-risk areas of the tire and protection in the tread area versus the tread center line. Arnco, South Gate, Calif.