TIRE

A tire includes a tread portion 2. The tread portion 2 has at least one circumferential groove 5 continuously extending in a tire circumferential direction. The circumferential groove 5 includes a first groove edge 6 and a first groove wall 8. The first groove wall 8 includes a recess-projection wall portion 10 in which recesses and projections are repeated in the tire circumferential direction on an inner side in a tire radial direction with respect to the first groove edge 6. The recess-projection wall portion 10 includes a plurality of recesses 11 arranged at intervals in the tire circumferential direction, and columnar portions 12 formed between the adjacent recesses 11. Each recess 11 includes a first plane 16 which is flat at a bottom thereof. Each columnar portion 12 includes a second plane 17 substantially parallel to the first plane 16.