A tire (10,110) comprising: at least one air intake groove (22, 122) provided in a tire tread section (12, 112), extending in a direction intersecting a tire circumferential direction, and having a groove width (W, W1) smaller than a groove depth (D, D1); an air introduction groove (24, 28, 124, 128) opening to a tread surface side and communicating with the air intake groove (22, 122) to introduce an air on the tread surface side into the air intake groove (22, 122) accompanying tire rotation; and an air-guiding section (26, 30, 144, 146, 154, 156, 164, 166, 174, 176) having an air-guiding surface (26b, 30b, 144f, 146f) which intersects the air intake groove (22, 122) and which is directed outward in a position intersecting the air intake groove (22, 122) with respect to a center position in a groove longitudinal direction of the air intake groove (22, 122), the air-guiding surface (26b, 30b, 144f, 146f) guiding an air introduced into the air intake groove (22, 122) by the air introduction groove (24, 28, 124, 128) to a groove bottom side of the air intake groove (22, 122), wherein a groove bottom (24c, 28c) of the air introduction groove (24, 28) is made of an inclined surface inclined from the tread surface toward the inner side in a tire radial direction, the inclination angle (α, α1) of the inclined surface of the air introduction grooves (24, 28), with respect to the tread surface is 45° or less, wherein the air introduction groove (24, 28) communicates with a groove wall surface (22a, 22b) on one side of groove wall surfaces (22a, 22b) opposite to each other in the tire circumferential direction of the air intake groove, wherein the air-guiding section (26, 30) communicates with the air intake groove, communicates with the groove wall surface (22b, 22a) on the other side of the groove wall surfaces (22a, 22b) opposite to each other in the tire circumferential direction of the air intake groove, has an outer side end in the tire radial direction on an outer side in a tire radial direction from a radial direction position where the air introduction groove (24, 28) and the air intake groove intersect, and has an inner side end in the tire radial direction on an inner side in the tire radial direction from a position half a groove depth of the air intake groove, and wherein the air-guiding section (26, 30) comprises an air-guiding groove (26, 30) partially opposed to the air introduction groove (24, 28) at least in the tire circumferential direction. at least one air intake groove (22, 122) provided in a tire tread section (12, 112), extending in a direction intersecting a tire circumferential direction, and having a groove width (W, W1) smaller than a groove depth (D, D1); an air introduction groove (24, 28, 124, 128) opening to a tread surface side and communicating with the air intake groove (22, 122) to introduce an air on the tread surface side into the air intake groove (22, 122) accompanying tire rotation; and an air-guiding section (26, 30, 144, 146, 154, 156, 164, 166, 174, 176) having an air-guiding surface (26b, 30b, 144f, 146f) which intersects the air intake groove (22, 122) and which is directed outward in a position intersecting the air intake groove (22, 122) with respect to a center position in a groove longitudinal direction of the air intake groove (22, 122), the air-guiding surface (26b, 30b, 144f, 146f) guiding an air introduced into the air intake groove (22, 122) by the air introduction groove (24, 28, 124, 128) to a groove bottom side of the air intake groove (22, 122), wherein a groove bottom (24c, 28c) of the air introduction groove (24, 28) is made of an inclined surface inclined from the tread surface toward the inner side in a tire radial direction, the inclination angle (α, α1) of the inclined surface of the air introduction grooves (24, 28), with respect to the tread surface is 45° or less, wherein the air introduction groove (24, 28) communicates with a groove wall surface (22a, 22b) on one side of groove wall surfaces (22a, 22b) opposite to each other in the tire circumferential direction of the air intake groove, wherein the air-guiding section (26, 30) communicates with the air intake groove, communicates with the groove wall surface (22b, 22a) on the other side of the groove wall surfaces (22a, 22b) opposite to each other in the tire circumferential direction of the air intake groove, has an outer side end in the tire radial direction on an outer side in a tire radial direction from a radial direction position where the air introduction groove (24, 28) and the air intake groove intersect, and has an inner side end in the tire radial direction on an inner side in the tire radial direction from a position half a groove depth of the air intake groove, and wherein the air-guiding section (26, 30) comprises an air-guiding groove (26, 30) partially opposed to the air introduction groove (24, 28) at least in the tire circumferential direction.