A pneumatic tire comprising: a tread ; a pair of sidewalls connected to edges of the tread; a pair of beads each having a core extending in a circumferential direction and an apex located radially outward of the core ; a carcass extending from one bead to the other bead at an inner side of the tread and the pair of sidewalls ; and a pair of clinches located radially inward of the sidewalls , wherein the carcass includes a carcass ply having a main body portion that extends on and between one core and the other core and a pair of turned-up portions that are connected to the main body portion and turned up around the cores from an inner side toward an outer side in an axial direction, and in a state where the tire is mounted on a normal rim and an internal pressure of the tire is adjusted to 10% of a normal internal pressure, the main body portion extending along an inner surface of the apex is tilted relative to the axial direction, and an angle (θc) of the main body portion relative to the axial direction is not less than 40° and not greater than 60°, wherein said angle (θc) is the angle relative to the axial direction of a straight line (BA) that passes through a position PB and an outer edge (PA) of the apex , wherein the position PB represents the position on the inner surface of the apex corresponding to the position at which the height in the radial direction of the apex is half, characterized in that a length (LA) from a center (PM) in the axial direction of a boundary between the core and the apex to the outer edge (PA) of the apex is not less than 10 mm and not greater than 15 mm. a tread ; a pair of sidewalls connected to edges of the tread; a pair of beads each having a core extending in a circumferential direction and an apex located radially outward of the core ; a carcass extending from one bead to the other bead at an inner side of the tread and the pair of sidewalls ; and a pair of clinches located radially inward of the sidewalls , wherein the carcass includes a carcass ply having a main body portion that extends on and between one core and the other core and a pair of turned-up portions that are connected to the main body portion and turned up around the cores from an inner side toward an outer side in an axial direction, and in a state where the tire is mounted on a normal rim and an internal pressure of the tire is adjusted to 10% of a normal internal pressure, the main body portion extending along an inner surface of the apex is tilted relative to the axial direction, and an angle (θc) of the main body portion relative to the axial direction is not less than 40° and not greater than 60°, wherein said angle (θc) is the angle relative to the axial direction of a straight line (BA) that passes through a position PB and an outer edge (PA) of the apex , wherein the position PB represents the position on the inner surface of the apex corresponding to the position at which the height in the radial direction of the apex is half, characterized in that a length (LA) from a center (PM) in the axial direction of a boundary between the core and the apex to the outer edge (PA) of the apex is not less than 10 mm and not greater than 15 mm. <EOS>