Radial tire

The invention provides a radial tire. The radial tire comprises a tread, a tire body, a sidewall and a tire bead, the sidewall is connected to the tire bead and the tread; a filling space extending from a tire bead to a tire tread is formed in the part, positioned in the tire side wall, of the tire body; the filling space is filled with filling colloid, the radial tire is configured to be in contact with a rim so that the filling colloid can have a stress point in a contact area, and the filling colloid is divided into a first section and a second section by taking the stress point as a boundary; the thicknesses of the first sections are substantially equal and extend outwards for a certain distance along the radial direction of the radial tire from the stress point, and the thickness of the second sections is gradually increased and extends to the upper end surface connected with a tire bead from the stress point. By applying the technical scheme, early damage of the tire bead part of the radial tire under t