| 摘要 |
A pneumatic tire has a pair of bead portions, side wall portions, a tread portion, and a carcass ply rolled up in its end portion so as to pinch a bead filler. An outer surface of the side wall portion is provided with a concavo-convex region formed by arranging a lot of projecting lines extending in a tire circumferential direction in parallel in the tire diametrical direction, and an arranged density of the projecting lines becomes larger toward the outer side in the tire diametrical direction. An outer peripheral end of the concavo-convex region is positioned in the outer side than a position where an interface between a tread rubber and a side rubber is exposed, and an inner peripheral end of the concavo-convex region is positioned in an inner side than a leading end of the bead filler.
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