| 摘要 |
There is provided a pneumatic tire capable of surely restraining uneven wear for a long term. A groove portion 22 recessed in the tire width direction is formed along the tire circumferential direction on a buttress portion 16 extending inwardly in the tire radial direction from the widthwise end portion 14a of the tread portion 14, the groove portion 22 being situated between a first intersecting portion P1 where a first virtual line L1 connecting locations of half depths of plurality of main grooves 19 in the tire width direction intersects with a surface of the buttress portion 16, and a second intersecting portion P2 where a second virtual line L2 extending outwardly in the tire width direction from each of both ends of an innermost belt 13a in the tire width direction disposed in an innermost side of the belt layer 13 in the tire radial direction intersects with the surface of the buttress portion 16, and an opening width A of the groove portion 22 in the buttress portion 16 is larger than a depth B of the groove portion 22.
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