PNEUMATIC TIRE

A land ratio of a shoulder portion Sh of a tread portion 2 is 57 to 72%, and a land ratio of a center portion Ce is 40 to 55%. In the center portion Ce, one row block made up of center blocks 6 is formed. Each of the center blocks 6 has its width gradually reduced from a position establishing an axial maximum width BW toward both a leading end and a trailing end relative to the tire rotating direction, each of the center blocks being provided with, at the leading end thereof, a tip portion 6a that sharpens toward the leading end, and being provided with, at the trailing end thereof, a concave portion 6b that smoothly concaves toward the leading end. In each of the center blocks 6, a ratio (BL/BW) between the axial maximum width BW and a maximum length BL in the circumferential direction is 1.00 to 1.20.