Pneumatic tire

A pneumatic tire, comprising in cross-section on each side of a tire equatorial plane:

• a bead core;
• a bead filler disposed on an outer side in a tire radial direction of the bead core;
• a carcass layer wrapping the bead core and the bead filler and being wound and turned back to an outer side in a tire width direction;
• a sidewall rubber constituting a sidewall portion;
• a rim cushion rubber constituting a rim fitting surface of a bead portion;
• a run-flat reinforcing layer disposed on an inner side in the tire width direction of the carcass layer;
• and a second filler disposed between the turned back portion of the carcass layer and the rim cushion rubber;
• a point P on a tire outer circumferential surface being defined, the point P being located at a position equal to 150% of a rim flange height in the tire radial direction from a measurement point of a rim diameter of a specified rim, a perpendicular line L being defined, the perpendicular line L being drawn from the point P to a tire inner circumferential surface so as to be perpendicular to the tire inner circumferential surface, and
• a rubber gauge G1 of the run-flat reinforcing layer on the perpendicular line L, and a rubber gauge G2 on the perpendicular line L of a region from an outermost surface in the tire width direction of the turned back portion of the carcass layer to the point P having a relationship 0<G1/G2≤0.65, wherein
• in cross-section on each side of the tire equatorial plane the rubber gauge G2 of the region on the perpendicular line L has a relationship 0.95≤G2/Gr≤1.15 with respect to a maximum rubber gauge Gr of the run-flat reinforcing layer perpendicular to the tire inner circumferential surface.