- medium-duty Truck All-position Super single Radial tire Designed to deliver superior Wear Performance in Tough operations from urban Front axles to long-Haul trailers - optimized profile Minimizes casing Growth of the tread area for long Wear life - six straight and Stiff ribs Provide Smooth Wear and long life - Five wide grooves with siping on ribs Provide Outstanding traction - Exceptional uniformity and balance contribute to a Smooth ride - wide Steel-belt Construction braces the tread area, improving durability, while high elongation top belt Protects casing Integrity - high-stiffness bead filler for improved sidewall durability - Toyo Truck tire Limited Warranty and casing Policy