| 摘要 |
A pneumatic tire wherein a plurality of pitches different from each other in the length constitute the whole circumference of a tread surface, the total period length of each period is divided into a former half period length and a latter half period length, and (1) in every period, the ratio of either of the two half period lengths to the total period length is 15 to 30%, or (2) in the whole circumference of the tread surface, the average value of the ratio of a smaller half period length to the total period length is 15 to 30%.
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