PNEUMATIC TIRE

摘要

A tread surface (2) of a pneumatic tire is divided by vertical grooves (3a, 3b) on both sides of the tire equator into central land portions (4i), intermediate land portions (4m), and shoulder land portions (4o). The intermediate land portions (4i) have inclined grooves (9). Angle theta of an inclined groove (9) to the circumferential direction of the tire is increased from an inner edge (mi), away from an inner vertical groove (3a) by distance La, to an outer edge (mo) where the inclined groove (9) intersects an outer vertical groove (3b). Angle thetai at the inner end (mi) is set to 0-25º and the angle thetao at the outer end (mo) is set to 60-80º. A circumferential interval (P1) of inclined grooves (9) is made larger than a circumferential interval (P2) of lug grooves (5) in the shoulder land portions (4o).