Abstract: A pneumatic tire with an air pressure corresponding to maximum loading, such that the ground contact shape has a gradually decreasing circumferential direction length from the tire width direction center to the portion corresponding towards the tire width direction outermost circumferential groove, followed by the ground contact shape having a gradually increasing circumferential direction length towards the tire width direction outside. In the ground contact shape, the relationships 0.02?(A?B)/L?0.1, and 0.02?(C?B)/L?0.1 are satisfied, in which A is the maximum length in the circumferential direction of the tire width direction outermost rib, L is the circumferential direction length of the tire width direction center, and B and C are distances in a tire circumferential direction which depend on the width of the tire width direction outermost rib and the width of the second rib from the outside in the tire width direction.

Abstract: A pneumatic tire is mounted onto a rim with maximum loading, and with an air pressure corresponding to maximum loading, such that the ground contact shape has a gradually decreasing circumferential direction length from the tire width direction center to the portion corresponding towards the tire width direction outermost circumferential groove, followed by the ground contact shape having a gradually increasing circumferential direction length towards the tire width direction outside. In the ground contact shape, the relationships 0.02?(A?B)/L?0.1, and 0.02?(C?B)/L?0.1 are satisfied, in which A is the maximum length in the circumferential direction of the tire width direction outermost rib, L is the circumferential direction length of the tire width direction center, and B and C are distances in a tire circumferential direction which depend on the width of the tire width direction outermost rib and the width of the second rib from the outside in the tire width direction.

Abstract: A pneumatic tire with a rib pattern that is able to suppress uneven wear further than conventionally is provided. Uneven wear in the vicinity of the tread edge due to dragging and shoulder scrubbing wear can be suppressed more than conventionally by providing a pneumatic tire in which, under conditions that the pneumatic tire is mounted onto a rim with maximum loading, and with an air pressure corresponding to maximum loading, the ground contact shape has a gradually decreasing circumferential direction length from the tire width direction center to the portion corresponding towards the tire width direction outermost circumferential groove, followed by the ground contact shape having a gradually increasing circumferential direction length towards the tire width direction outside, and such that the following relationships are satisfied: 0.02?(A?B)/L?0.1, and 0.02?(C?B)/L?0.1.