A tire comprising a tread extending in a circumferential direction and having an outer circumferential surface that is a tread surface, wherein the tread has a plurality of circumferential grooves aligned in an axial direction and dividing the tread into a plurality of land portions, the plurality of circumferential grooves include a first shoulder circumferential groove (30s1) located on an outer side in a width direction of a vehicle when the tire is mounted to the vehicle, and a second shoulder circumferential groove (30s2) located on an inner side in the width direction of the vehicle when the tire is mounted to the vehicle, the land portion located outward of the first shoulder circumferential groove (30s1) in the axial direction is a first shoulder land portion (32s1), the land portion located outward of the second shoulder circumferential groove (30s2) in the axial direction is a second shoulder land portion (32s2), the tread includes a cap portion configured to come into contact with a road surface, and a base portion located radially inward of the cap portion and covered with the cap portion, the cap portion includes an outer cap portion located on the outer side in the width direction of the vehicle when the tire is mounted to the vehicle, and an inner cap portion located on the inner side in the width direction of the vehicle when the tire is mounted to the vehicle, and the first shoulder land portion (32s1) includes a boundary between the outer cap portion and the inner cap portion, characterized in that a 300% modulus (Mu) of the inner cap portion is not less than 5.0 MPa, a 300% modulus (Ms) of the outer cap portion is higher than the 300% modulus (Mu) of the inner cap portion, and is not greater than 9.0 MPa, wherein the 300% modulus means the tensile stress at 300% elongation specified in JIS K6251, is represented as a 300% modulus at 100°C and is measured according to the standards of JIS K6251 by sampling a test piece from the tire such that the length direction thereof coincides with the circumferential direction of the tire, or by sampling a test piece from a sheet-shaped crosslinked rubber obtained by pressurizing and heating a rubber composition, which is used for forming the component to be measured, at a temperature of 170°C for 12 minutes. the tread has a plurality of circumferential grooves aligned in an axial direction and dividing the tread into a plurality of land portions, the plurality of circumferential grooves include a first shoulder circumferential groove (30s1) located on an outer side in a width direction of a vehicle when the tire is mounted to the vehicle, and a second shoulder circumferential groove (30s2) located on an inner side in the width direction of the vehicle when the tire is mounted to the vehicle, the land portion located outward of the first shoulder circumferential groove (30s1) in the axial direction is a first shoulder land portion (32s1), the land portion located outward of the second shoulder circumferential groove (30s2) in the axial direction is a second shoulder land portion (32s2), the tread includes a cap portion configured to come into contact with a road surface, and a base portion located radially inward of the cap portion and covered with the cap portion, the cap portion includes an outer cap portion located on the outer side in the width direction of the vehicle when the tire is mounted to the vehicle, and an inner cap portion located on the inner side in the width direction of the vehicle when the tire is mounted to the vehicle, and the first shoulder land portion (32s1) includes a boundary between the outer cap portion and the inner cap portion, characterized in that a 300% modulus (Mu) of the inner cap portion is not less than 5.0 MPa, a 300% modulus (Ms) of the outer cap portion is higher than the 300% modulus (Mu) of the inner cap portion, and is not greater than 9.0 MPa, wherein the 300% modulus means the tensile stress at 300% elongation specified in JIS K6251, is represented as a 300% modulus at 100°C and is measured according to the standards of JIS K6251 by sampling a test piece from the tire such that the length direction thereof coincides with the circumferential direction of the tire, or by sampling a test piece from a sheet-shaped crosslinked rubber obtained by pressurizing and heating a rubber composition, which is used for forming the component to be measured, at a temperature of 170°C for 12 minutes.