A tire comprising a tread portion having a designated rotation direction, wherein the tread portion includes: a first tread end; a first middle position that is a center position between the first tread end and a tire equator in a tire axial direction; and a plurality of first inclined grooves extending at least from the first tread end toward the tire equator so as to be inclined to a leading edge side in the rotation direction, an inner end of each of the plurality of first inclined grooves in the tire axial direction is located on the tire equator side with respect to the first middle position, in each of the plurality of first inclined grooves, an angle (θ2) relative to a tire circumferential direction at the inner end is smaller than an angle (θ1) relative to the tire circumferential direction at the first middle position, each of the plurality of first inclined grooves includes a first groove wall on the leading edge side in the rotation direction and a second groove wall on a trailing edge side in the rotation direction, in an inner region on the inner end side with respect to the first middle position of each of the plurality of first inclined grooves, the second groove wall includes a chamfered portion, wherein the chamfered portion of the second groove wall is provided in the inner region over an entire length of the inner region, characterized in that in a cross-section orthogonal to a groove center line of the first inclined groove, a chamfered area of the chamfered portion increases toward the inner end side, wherein the chamfered area of the chamfered portion of the second groove wall continuously increases from the first middle position to the inner end, and wherein the chamfered area is determined according to the description. the tread portion includes: a first tread end; a first middle position that is a center position between the first tread end and a tire equator in a tire axial direction; and a plurality of first inclined grooves extending at least from the first tread end toward the tire equator so as to be inclined to a leading edge side in the rotation direction, a first tread end; a first middle position that is a center position between the first tread end and a tire equator in a tire axial direction; and a plurality of first inclined grooves extending at least from the first tread end toward the tire equator so as to be inclined to a leading edge side in the rotation direction, an inner end of each of the plurality of first inclined grooves in the tire axial direction is located on the tire equator side with respect to the first middle position, in each of the plurality of first inclined grooves, an angle (θ2) relative to a tire circumferential direction at the inner end is smaller than an angle (θ1) relative to the tire circumferential direction at the first middle position, each of the plurality of first inclined grooves includes a first groove wall on the leading edge side in the rotation direction and a second groove wall on a trailing edge side in the rotation direction, in an inner region on the inner end side with respect to the first middle position of each of the plurality of first inclined grooves, the second groove wall includes a chamfered portion, wherein the chamfered portion of the second groove wall is provided in the inner region over an entire length of the inner region, characterized in that in a cross-section orthogonal to a groove center line of the first inclined groove, a chamfered area of the chamfered portion increases toward the inner end side, wherein the chamfered area of the chamfered portion of the second groove wall continuously increases from the first middle position to the inner end, and wherein the chamfered area is determined according to the description.