High mileage truck tire tread

A tire tread comprising a center rib, first and second intermediate ribs on opposite lateral sides of the center rib and separated from the center rib respectively by first and second intermediate circumferential grooves, and first and second shoulder ribs on opposite axially outward sides respectively of the first and second intermediate ribs and separated from respective intermediate ribs by first and second circumferential shoulder grooves;

• the intermediate grooves each having an axial width wider than an axial width of the shoulder grooves, and the center rib having an axial width wider than a respective axial width of the intermediate ribs and the shoulder ribs, wherein the central rib has an axial width within a range of 18 to 21 percent of the total tread axial width, the axial widths of the intermediate ribs are each within a range of 10 to 15 percent of the total tread axial width, the shoulder ribs have respective axial widths each within a range of 17 to 21 percent of the total tread axial width, the intermediate grooves have respective axial widths each within a range of 4 to 9 percent of the total tread axial width, and the axial widths of the shoulder grooves are each within a range of 2 to 4 percent of the total tread axial width.