Pneumatic tire having tread portion including blocks

摘要

A pneumatic tire having a tread with a block design suited for off-road use. The tire has a ground contacting tread portion with circumferentially extending grooves and laterally extending grooves comprising at least a portion of an S-shape, defining circumferentially extending rows of blocks. The blocks comprise a first, second and third portion; the laterally outer, first and third portions, having a trapezoidal shape, are linked together by the second portion, having a height which is lower than the height of said first and third portions. In a preferred embodiment the tread has six rows of blocks spaced by five circumferentially extending straight grooves.