A pneumatic tire comprising: a tread; a carcass; a pair of beads; and a pair of load support layers, wherein the carcass includes a carcass ply, the carcass ply includes a main portion and a pair of turned-up portions, the main portion extends from a portion inward of one of the beads in an axial direction to a portion inward of the other of the beads in the axial direction, and the pair of turned-up portions are disposed outward of the beads, respectively, in the axial direction, the load support layers extend, in portions inward of the carcass, from portions inward of the beads, respectively, in the axial direction to portions inward of the tread in a radial direction, when a reference point P represents a point, on an outer surface of the tire, which is distant from a bead base line by 25 mm in the radial direction, and V represents a line normal to the outer surface at the reference point P, a distance D1, measured along the normal line V, from the outer surface of the tire to an outer side surface of the main portion is greater than or equal to 3 mm and not greater than 10 mm, wherein the load support layers include first layers that extend radially outward from the portions inward of the beads, respectively, in the axial direction, and second layers disposed outward of the first layers, respectively, in the radial direction, and a hardness H1 of each first layer is higher than a hardness H2 of each second layer, characterized in that a ratio (T1/T) of a height T1, in the radial direction, from the bead base line to an outer side end of the first layer, relative to a cross-sectional height T of the tire, is greater than or equal to 1/3 and not greater than 1/2, wherein the dimensions and angles of the components of the tire are measured in a state where the tire is mounted on a normal rim, and the tire is inflated with air to a normal internal pressure and during the measurement, no load is applied to the tire. a tread; a carcass; a pair of beads; and a pair of load support layers, wherein the carcass includes a carcass ply, the carcass ply includes a main portion and a pair of turned-up portions, the main portion extends from a portion inward of one of the beads in an axial direction to a portion inward of the other of the beads in the axial direction, and the pair of turned-up portions are disposed outward of the beads, respectively, in the axial direction, the load support layers extend, in portions inward of the carcass, from portions inward of the beads, respectively, in the axial direction to portions inward of the tread in a radial direction, when a reference point P represents a point, on an outer surface of the tire, which is distant from a bead base line by 25 mm in the radial direction, and V represents a line normal to the outer surface at the reference point P, a distance D1, measured along the normal line V, from the outer surface of the tire to an outer side surface of the main portion is greater than or equal to 3 mm and not greater than 10 mm, the load support layers include first layers that extend radially outward from the portions inward of the beads, respectively, in the axial direction, and second layers disposed outward of the first layers, respectively, in the radial direction, and a hardness H1 of each first layer is higher than a hardness H2 of each second layer, a ratio (T1/T) of a height T1, in the radial direction, from the bead base line to an outer side end of the first layer, relative to a cross-sectional height T of the tire, is greater than or equal to 1/3 and not greater than 1/2, wherein the dimensions and angles of the components of the tire are measured in a state where the tire is mounted on a normal rim, and the tire is inflated with air to a normal internal pressure and during the measurement, no load is applied to the tire.