A tire 1 according to the present invention comprises: a circumferential groove 12 formed in a tread portion; a land portion 22 divided by the circumferential groove 12; and transverse grooves formed in the land portion. The transverse grooves comprise a first transverse groove 32 dividing the land portion into several blocks, and a second transverse groove 51 dividing a block 42 divided by the first transverse groove into a first block portion 61 and a second block portion 62. A groove depth of the circumferential groove contacting the second block is smaller than the groove depth of the circumferential groove contacting the first block.