PNEUMATIC TIRE

A pneumatic tire comprises a tread portion which has, on each side of the tire equator, a first tread edge, a second tread edge and a third tread edge which are occurred under tire loads of 100%, 75% and 50% of a regular tire load, respectively. Between the third tread edge and the tire equator, a circumferentially continuously extending main groove is disposed. A shoulder region between the main groove and the first tread edge is provided with a first inclined groove which extends so as to intersect with the first tread edge, the second tread edge and the third tread edge. The depth of the first inclined groove at the first tread edge is smaller than the depth at the second tread edge and the depth at the third tread edge.