| 摘要 |
PROBLEM TO BE SOLVED: To prevent the occurrence of a tendency of a rib lag pattern pneumatic tire that the swing angle of the peripheral groove in a zigzag-shape is high and anti-wandering performance is lowered. SOLUTION: When each of left and right shoulder grooves 3L and 3R of a plurality of peripheral grooves 3S, 3L, and 3R is set that a minimum width of shoulder ribs 5L and 5R extending from a shoulder and to shoulder grooves 3L and 3R is (a) and a maximum width is b, its width is b-a, and when the total width of a tread 1 is TW, b-a/TW is set to 5% or less. |
