Pneumatic tire

A pneumatic tire having a bead portion structure that at least two bead wire structural bodies, each being obtained by spirally winding a bead wire(s) so as to continuously extend in a circumferential direction, are disposed in a bead portion so as to sandwich a carcass ply or enclose with the carcass ply, in which an outer end of at least one of the bead wire structural bodies in a radial direction is located on a position corresponding to a rim line or outward therefrom and a rigidity in a lateral direction of the tire is changed by changing a diameter of the bead wire between the mutual bead wire structural bodies located at inside and outside in a widthwise direction of the tire.

A pneumatic tire having a bead portion structure that at least two bead wire structural bodies, each being obtained by spirally winding a bead wire(s) so as to continuously extend in a circumferential direction, are disposed in a bead portion so as to sandwich a carcass ply or enclose with the carcass ply, in which an outer end of at least one of the bead wire structural bodies in a radial direction is located on a position corresponding to a rim line or outward therefrom and a rigidity of the bead wire structural body in a longitudinal direction of the tire is changed in a radial direction of the tire by changing at least one of, a material used, and, a diameter of a bead wire, between one of the bead wire structural bodies and another bead wire structural body.