A tire having: diagonal lug grooves on a tread surface of the tire, the lug grooves extending from a tire center portion to an axial end of a tread diagonally with respect to tire circumferential and axial directions; wherein when an angle (θ LG) of diagonal lug grooves with respect to the tire axial direction is designated as a lug groove diagonal angle (θ LG), and an angle (θ FP) of a normal line of a leading-end profile line of a contact patch shape of the tire with respect to the tire axial direction is designated as a profile line diagonal angle (θ FP), and when a range covering 20% in width of the contact patch width with an equatorial plane at a center is designated as a center portion, a range covering 20% in width of the contact patch width on each axially outer side adjacent to a center portion as an intermediate portion, and a range covering 20% in width of the contact patch width on each axially outer side adjacent to the intermediate portion as a shoulder portion, characterised in that absolute values of difference between the lug groove diagonal angle (θ LG) and the profile line diagonal angle (θ FP) at different positions in the tire axial direction in the center portion and the intermediate portion are larger than the absolute value of the difference between the lug groove diagonal angle (θ LG) and the profile line diagonal angle (θ FP) at different positions in the tire axial direction in the shoulder portion, wherein the absolute values of the difference between the lug groove diagonal angle (θ LG) and the profile line diagonal angle (θ FP) in the center portion and the intermediate portion at different positions in the tire axial direction are 20° or more and 50° or less and wherein the absolute value of the difference between the lug groove diagonal angle (θ LG) and the profile line diagonal angle (θ FP) at different positions in the tire axial direction in the shoulder portion is 0° or more and 30° or less. diagonal lug grooves on a tread surface of the tire, the lug grooves extending from a tire center portion to an axial end of a tread diagonally with respect to tire circumferential and axial directions; wherein when an angle (θ LG) of diagonal lug grooves with respect to the tire axial direction is designated as a lug groove diagonal angle (θ LG), and an angle (θ FP) of a normal line of a leading-end profile line of a contact patch shape of the tire with respect to the tire axial direction is designated as a profile line diagonal angle (θ FP), and when a range covering 20% in width of the contact patch width with an equatorial plane at a center is designated as a center portion, a range covering 20% in width of the contact patch width on each axially outer side adjacent to a center portion as an intermediate portion, and a range covering 20% in width of the contact patch width on each axially outer side adjacent to the intermediate portion as a shoulder portion, characterised in that absolute values of difference between the lug groove diagonal angle (θ LG) and the profile line diagonal angle (θ FP) at different positions in the tire axial direction in the center portion and the intermediate portion are larger than the absolute value of the difference between the lug groove diagonal angle (θ LG) and the profile line diagonal angle (θ FP) at different positions in the tire axial direction in the shoulder portion, wherein the absolute values of the difference between the lug groove diagonal angle (θ LG) and the profile line diagonal angle (θ FP) in the center portion and the intermediate portion at different positions in the tire axial direction are 20° or more and 50° or less and wherein the absolute value of the difference between the lug groove diagonal angle (θ LG) and the profile line diagonal angle (θ FP) at different positions in the tire axial direction in the shoulder portion is 0° or more and 30° or less.