Patent ID: 8499807

Claim:
A pneumatic run flat tire comprising: a carcass layer mounted between a pair of left and right bead portions, a belt layer disposed on an outer circumferential side of the carcass layer in a tread portion, and a reinforcing rubber layer having a falcated cross-section disposed on an inner side in a tire width direction of the carcass layer in a side wall portion; wherein in a tire meridian direction cross-section, when a point where a tire equator plane meets a tread surface is T 0 , and a point where a straight line drawn parallel to the tire equator plane from a position 40% of a total tire width SW starting from the point T 0 meets the tread surface is T 1 , an angle θ formed by a straight line joining the point T 0 and the point T 1 with respect to the tire width direction satisfies a relationship (SH/SW×6+3)°≦θ≦(SH/SW×6+8)° with respect to the total tire width SW and a tire cross-section height SH; a height H 1 of an outer peripheral edge of the bead filler from a bead heel is from 30 to 50% of the tire cross-section height SH; and a height H 2 of a maximum thickness position of the reinforcing rubber layer from the bead heel is from 35 to 55% of the tire cross-section height SH.