| 摘要 |
<p>PROBLEM TO BE SOLVED: To improve noise performance and mud performance.SOLUTION: A shoulder peripheral direction main groove 3 is forms as a trapezoidal-wave-like zigzag including an outer groove part 10, an inner groove part 11 and a transition groove part 12. A shoulder traverse groove 8 includes an inner traverse groove part 13 in which a tire shaft direction inner end 8E is connected to an outer corner part Ko and a tire shaft direction outer end 10e of the outer groove part 10 and which extends from the inner end 8E with inclination of a first angleα1 of 10 to 30° to the tire shaft direction. The cross section area of the shoulder traverse groove 8 increases gradually from the inner end 8E to at least a ground contact end Te.</p> |
