| 摘要 |
Provided is a pneumatic tire which employs pitch variation for suppressing pattern noise and has uniformity further improved. Pitches 3a, 3b and 3c with different pitch lengths are formed so that a pitch with a larger pitch length is set to have a smaller groove area ratio, and to have a larger groove wall angle α on the obtuse angle side that is formed by a groove wall of a lateral groove 2 and the direction tangential to the thread surface.
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