| 摘要 |
A pneumatic tire to be mounted on a rim, comprises a pair of bead portions each having a bead core therein, wherein each bead portion has a profile comprising a bead base extending between a bead toe (Pt) and a heel-side point (Ph), the bead base (Sb) comprising an axial base width (W1), a straight part (20) extending from the bead toe (Pt) toward the heel-side (Ph) point having an inclination so that an extended line (N) thereof passes through the heel-side point (Ph), a convex part (21) provided between an axially outer end of the straight part (20) and the heel-side point (Ph) and protruding radially inside of the extended line (N), and the convex part (21) having a radius of curvature of from 0.20 to 0.33 times the base width (W1) and a height (Hd) from the extended line (N) of from 0.067 to 0.13 times the base width (W1). |
