A pneumatic tire.

摘要

A pneumatic tire has a tread patter with blocks which are divided by two circumferential grooves (G) extending in the circumferential direction of a tire and eighty-five or more lateral grooves (g) crossing the circumferential grooves in a tread part. In the tread patten, the rate ST/S of the total groove area ST which is the sum of the circumferential groove area SG and the lateral groove area Sg in a ground contact surface when the tire is mounted on a standard rim, inflated with a specific internal pressure and loaded with a specific load to the ground contact area S is 0.15 or more and 0.25 or less, and the rate Sg/SG of the lateral groove area Sg to the circumferential groove area SG is 0.33 or more and 0.53 or less.