TIRE

A tire is provided with blocks in a tread portion. Each of the blocks has a block wall surface provided with first recesses. Each of the first recesses extends across a block ground contacting surface and the block wall surface. Each of the first recesses has a triangular ground contacting surface opening on the block ground contacting surface and a triangular wall surface opening on the block wall surface. The wall surface opening has a first end terminating without reaching a groove bottom of one of grooves demarcating the each of the blocks.