PNEUMATIC TIRE

A tread includes a first main groove and a second main groove extending along a tire circumferential direction on an inner side in a tire axial direction, a narrow groove extending along the tire circumferential direction on an outer side in the tire axial direction, and from the inner side toward the outer side in the tire axial direction, a first shoulder rib defined by the first main groove, an intermediate rib defined by the first main groove and the second main groove, and a center rib defined by the second main groove and the narrow groove, a groove volume ratio increases in order of the first shoulder rib, the intermediate rib, and the center rib, and the center rib and the intermediate rib protrude outward in a tire radial direction relative to a profile surface of the tread.