PNEUMATIC TIRE

The present invention provides a pneumatic tire having excellent durability at high-speed running, which includes a side portion and a belt layer, monofilament cords are used as reinforcing cords in the belt layer, and in a tire-radial-direction cross-section of the belt layer, an arrangement number e of monofilament cords per 5 cm in a tire width direction (cords/5 cm) and a tire cross-sectional width Wt (mm) when the tire is installed to a standardized rim and an inner pressure is set to 250 kPa satisfy the following (formula 1) and (formula 2). e / 139.5 − 0.3 Wt > 1 e / 191.5 − 0.3 Wt < 1