A tire comprising: a tread portion having a tire equator (C) and a first tread edge (Te1), the tread portion being provided with a first main groove extending continuously in a tire circumferential direction between the tire equator (C) and the first tread edge (Te1) and a first land region disposed adjacently to the first main groove on a first side in a tire axial direction; the first main groove comprising a groove wall located on a second side in the tire axial direction, the groove wall being provided with a plurality of recessed portions recessed toward the second side and arranged in the tire circumferential direction; the first land region being provided with a plurality of first lateral grooves ; each of the first lateral grooves comprising a first portion connected with the first main groove so as to form an opening on the first main groove and a second portion disposed on the first side in the tire axial direction of the first portion and having a groove width (W5) smaller than that (W4) of the first portion ; and at least a part of the opening of the first portion of at least one of the first lateral grooves facing one of the recessed portions in the tire axial direction, wherein the first land region is provided with a plurality of sipes extending along the first lateral grooves , characterized in that a groove wall of the first main groove located on the first side in the tire axial direction is provided with a plurality of recessed portions , and a pair of the sipes is provided between each pair of the first lateral grooves and is connected with one of the recessed portions . a tread portion having a tire equator (C) and a first tread edge (Te1), the tread portion being provided with a first main groove extending continuously in a tire circumferential direction between the tire equator (C) and the first tread edge (Te1) and a first land region disposed adjacently to the first main groove on a first side in a tire axial direction; the first main groove comprising a groove wall located on a second side in the tire axial direction, the groove wall being provided with a plurality of recessed portions recessed toward the second side and arranged in the tire circumferential direction; the first land region being provided with a plurality of first lateral grooves ; each of the first lateral grooves comprising a first portion connected with the first main groove so as to form an opening on the first main groove and a second portion disposed on the first side in the tire axial direction of the first portion and having a groove width (W5) smaller than that (W4) of the first portion ; and at least a part of the opening of the first portion of at least one of the first lateral grooves facing one of the recessed portions in the tire axial direction, wherein the first land region is provided with a plurality of sipes extending along the first lateral grooves , characterized in that a groove wall of the first main groove located on the first side in the tire axial direction is provided with a plurality of recessed portions , and a pair of the sipes is provided between each pair of the first lateral grooves and is connected with one of the recessed portions . <EOS>