| 主权项 |
1. A pneumatic tire comprising a plurality of land portion rows formed in a tread section by forming a circumferential direction main groove extending along the tire circumferential direction, wherein at least one row of the land portion rows comprises:
a plurality of fine grooves extending intermittently along the tire circumferential direction; at least one projecting sipe projecting out from the plurality of fine grooves towards one side in the tire width direction and open to the circumferential direction main groove; and a plain rib portion adjacent to the plurality of fine grooves on the other side in the tire width direction, the plain rib portion configured with a circular shaped peripheral face across the entire face of the plain rib portion on a ground contact side, wherein a shoulder land portion row is formed adjacent to the plain rib portion on the width direction outside of the plain rib portion, with at least one of fine groove and sipe between the shoulder land portion row and the plain rib portion, the at least one of fine groove and sipe between the shoulder land portion row and the plain rib portion is formed continuously around the whole tire circumference, and a width of the at least one of fine groove and sipe is within the range of 0.4 to 1.5 mm. |
