PNEUMATIC TIRE

A pneumatic tire can improve the heat dissipation effect in the tread portion while guaranteeing land portion rigidity and can also suppress degradation of the heat dissipation effect. The pneumatic tire includes a narrow groove (10) on a tread surface (1), extending at an inclination to the tire circumferential direction, the groove width (W1) being smaller than the groove depth (D1), an air inflow part (11) opening to the tread surface (1) and formed on at least one of the groove walls (10c) of the narrow groove (10) that face each other in the tire circumferential direction, and a wear prevention portion (12) formed by a protrusion or concavity on a groove wall (10c) that faces the other groove wall (10c) on which the air inflow part (11) is formed or on the tread surface (1) connecting to the groove wall (10c) that faces the other groove wall (10c).