To provide a pneumatic tire capable of reducing rolling resistance and improving riding comfortableness while maintaining run-flat durability.
The pneumatic tire is constituted in such a manner that a bead filler 20 has a bead filler upper part 23 constituting a part from a bead filler tip 25 on a tread 70 side to 40-60% of the bead filler 20 in a tire diameter direction, a thickness of the bead filler upper part 23 in section is 2.5 mm or smaller, and the bead filler tip 25 has a tire diameter height equal to that of a maximum thickness part 45 where a thickness in the section of a reinforcing rubber layer 40 is maximum. The pneumatic tire has a space-foamed rubber layer 50. In the tread width direction, the foamed rubber layer 50 is located so as to overlap the bead filler tip 25.
Iwa Saki Kokuni
Masakazu Ito
Shunichi Takahashi
Toshio Takamatsu