Provided is a pneumatic tire that allows improvement of
snow traction performance while favorably maintaining performance in resistance to uneven wear and maintaining traveling performance on an
unpaved road. Lug grooves (20, 30) are alternately arranged, the lug grooves (20, 30) comprising first groove portions (21, 31) intersecting with a tire center line CL and extending in the tire width direction and second groove portions (22, 32) respectively inclined, from ends of the first groove portions (21, 31), at acute angles in the tire circumferential direction relative to the first groove portions (21, 31) so as to extend to
tread ends E on one side and the other side relative to the tire center line. The other ends of the first groove portions (21, 31) are in communication with the respective second groove portions (32, 22), of the lug grooves (30, 20), adjacent to each other in the tire circumferential direction. The first groove portions (21, 31) are arranged on a stepping-in side relative to the ends of the
tread end E sides of the lug grooves (20, 30). The second groove portions (22, 32) are curved or bent such that the average angle theta in an inner side region A of the second groove portions (22, 32) becomes smaller than the average angle theta in an outer side region B of the second groove portions (22, 32). A shallow groove (60) is formed on a
tread surface of ablock (50) demarcated by the lug grooves (20, 30) and circumferential narrow grooves (40) for connecting the adjacent second groove portions (22) and the adjacent second groove portions (32) in the tire circumferential direction, in such a manner that the shallow groove (60) has at least one bent point.