Patent ID: 8424579

Claim:
A pneumatic tire comprising: an annular bead core provided in a bead portion; a bead filler provided in an outer side in a tire diametrical direction of the bead core and having a triangular cross-sectional shape as a whole formed by an axially outer surface, an axially inner surface, and a radially inner surface; a carcass ply rolled up in such a manner as to pinch the bead core and the bead filler; and a white rubber arranged in an outer side of the carcass ply of the side wall portion, and having an inner peripheral end positioned in an axially outer side of the bead filler, wherein the bead filler has a main body rubber portion running into the bead core from a leading end, and a soft rubber portion constructing part of the axially outer surface of the bead filler and positioned in an axially inner side of the inner peripheral end of the white rubber, and the soft rubber portion is harder than the white rubber and softer than the main body rubber portion, the bead filler consisting of a radially innermost part made only of the main body rubber portion, a radially outermost part made only of the main body rubber portion, and a center part made of the combination of the main body rubber portion and the soft rubber portion, and wherein in the center part the main body rubber portion is constricted at a constricted region at the center of the outer side surface of the main body rubber portion, and the soft rubber portion is provided in the constricted region.