Patent ID: 8708009

Claim:
A pneumatic tire comprising: a plurality of land rows formed with a plurality of main grooves extending in a tire peripheral direction, in a tread unit thereof, the land rows being partitioned into a plurality of blocks by a plurality of lug grooves intersecting the main grooves, wherein a block of said plurality of blocks has a width at an edge portion of a main groove of the plurality of main grooves; at least one of the land rows has a notch cut into each of the blocks from the edge portion, the notch having a plan view trapezoidal shape, a width of the notch is gradually reduced toward the tread end side, such that the width of the notch at the edge portion of the main groove is smaller than the width of the block at the edge portion of the main groove, and the notch has an inclined surface therein in a stairstep shape, the inclined surface extending in a groove bottom direction substantially from the edge portion of the main groove to a ground contact surface of block, wherein stairsteps of the stairstep shape extend substantially parallel to the edge portion of the main groove.