| 摘要 |
PROBLEM TO BE SOLVED: To simultaneously restrict shoulder fall wear in a shoulder area and a step wear.SOLUTION: A tread part 2 has a shoulder area Ys having a contour shape formed from an arc such that the shoulder area is greater in curvature radius R2 than a center area Yc. A distance L from the center of a shoulder main groove 3 to a tire equator Co is 0.45 to 0.55 times as long as a ground half width TW. The shoulder area Ys comprises a shoulder longitudinal narrow groove 5 near a tread ground end Te, and a shoulder lateral groove 9 extending from the shoulder longitudinal narrow groove 5 to a shoulder main groove 3. The depth of the shoulder lateral groove 9 is less than that of the shoulder main groove 3.SELECTED DRAWING: Figure 2 |
