Patent ID: 8037910

Claim:
A pneumatic tire having a designated mounting direction on a vehicle comprising: a plurality of main grooves provided on a tread surface extending linearly in a tire circumferential direction; and a multiplicity of land portions formed by the main grooves partitioning the tread surface, wherein, among the multiplicity of land portions, lug grooves are not provided in a ground contact region of the land portions positioned on both shoulder sides, lug grooves inclining in the tire circumferential direction that have terminating parts in the land portions and opening to the main grooves on a vehicle inner side partitioning the tread surface into the land portions are formed at specified intervals in the tire circumferential direction in land portions adjacent to an inner side of the land portions on both shoulder sides, the lug grooves being open only to the vehicle inner side, and a length of the lug grooves extending in the tire width direction is 40 to 60% of a width of the land portions in which the lug grooves are formed and an inclination angle on an acute angle side of the lug grooves with respect to the tire circumferential direction for the land portions on the vehicle outer side is equal to or less than that of the land portions on the vehicle inner side.