Pneumatic tire with tread defined by singularly bent transverse grooves

A pneumatic tire wherein a plurality of main grooves are provided in a tread of said tire so as to circumferentially fully extend therearound and one of said plurality of main grooves is situated on a tire equator line, with a plurality of sub-grooves connecting said main grooves with each other being provided in the width-wise direction of said tire, wherein each of said sub-grooves is bent in a convex shape facing in the same direction relative to the circumferential direction of said tire and has a bending point;

• and wherein bending points of some of said sub-grooves are distributed within those areas in the tread of said tire which extend, respectively, from said tire equator line toward opposite sides of said tire in the width-wise direction thereof over a distance equal to 5 to 25% of the tread ground-contacting width in such a manner that the number of said bending points is substantially equal on both sides of said tire equator line and wherein the remainder of said bending points of said sub-grooves are situated on said main groove so situated on said tire equator line.