| 摘要 |
PROBLEM TO BE SOLVED: To provide a pneumatic tire which can simultaneously improve rolling resistance and noise performance.SOLUTION: In a pneumatic tire, repetition elements including lateral grooves 51, 61 at an inner vehicle area Ain and an outer vehicle area Aout are constituted by N pitch variations including at least three sorts of pitches. When a groove area ratio of each repetition element at the inner vehicle area is Si(1), Si(2),..., Si(N-1), Si(N) in order from longer pitches, Si(2)-Si(1)≥Si(3)-Si(2)≥...≥Si(N)-Si(N-1) and Si(1)>Si(N) are satisfied. With respect to a groove area ratio of each repetition element at the outer vehicle area, the same relationship is satisfied. |
