| 摘要 |
<p>PURPOSE:To prevent premature wear, and still secure wet traction performance by making an effective ground contact area large in the center part of the tread part of a tire. CONSTITUTION:First main groove 4 having discrete parts 5 is provided in the central part of the tread part 2 of a tire, and second main grooves 5, 6 that continue in a circumferential direction are provided on both sides of this main groove 4. And, second main grooves 5, 6 possess intruding grooves 14, 15 facing the discrete parts 3.</p> |
