A tire, comprising a tread surface divided into a plurality of land portions by at least one circumferential groove extending along a tire equator (CL) and tread edges (TE), wherein at least an outline (LX, LY) on one side of the tire equator (CL) of the tread surface comprises a plurality of arcs (AR1, AR2, AR3, BR1, BR2, BR3) each having a different radius of curvature (ARc1, ARc2, ARc3, BRc1, BRc2, BRc3) in a width direction cross-sectional view of the tire; an arc (AR2) having a minimum radius of curvature (ARc2) among the plurality of arcs (AR1, AR2, AR3, BR1, BR2, BR3) lies in a land portion having a maximum tread width direction length among the plurality of land portions ; an arc (AR3) having a larger radius of curvature (ARc3) is disposed on a tread edge side of the arc (AR2) having the minimum radius of curvature (ARc2); the tread surface is divided into three land portions by two of the circumferential grooves and the tread edges (TE); the tire is characterized by a central land portion located at the tread width direction center among the three land portions having a tread width direction length that is 95% to 105% of the tire width direction length of the land portion having the maximum tread width direction length; the tire width direction center of the central land portion is located within a range of 10% or less of a tire width direction length of the central land portion from a tire maximum outer diameter position (OD) of the tread surface ; and the tread edge refers to a ground end when a tire is mounted on an applicable rim, filled with a prescribed internal pressure and applied with a prescribed load. a tread surface divided into a plurality of land portions by at least one circumferential groove extending along a tire equator (CL) and tread edges (TE), wherein at least an outline (LX, LY) on one side of the tire equator (CL) of the tread surface comprises a plurality of arcs (AR1, AR2, AR3, BR1, BR2, BR3) each having a different radius of curvature (ARc1, ARc2, ARc3, BRc1, BRc2, BRc3) in a width direction cross-sectional view of the tire; an arc (AR2) having a minimum radius of curvature (ARc2) among the plurality of arcs (AR1, AR2, AR3, BR1, BR2, BR3) lies in a land portion having a maximum tread width direction length among the plurality of land portions ; an arc (AR3) having a larger radius of curvature (ARc3) is disposed on a tread edge side of the arc (AR2) having the minimum radius of curvature (ARc2); the tread surface is divided into three land portions by two of the circumferential grooves and the tread edges (TE); the tire is characterized by a central land portion located at the tread width direction center among the three land portions having a tread width direction length that is 95% to 105% of the tire width direction length of the land portion having the maximum tread width direction length; the tire width direction center of the central land portion is located within a range of 10% or less of a tire width direction length of the central land portion from a tire maximum outer diameter position (OD) of the tread surface ; and the tread edge refers to a ground end when a tire is mounted on an applicable rim, filled with a prescribed internal pressure and applied with a prescribed load. <EOS>