Light Radial Tire

A tire comprising at least one carcass-type reinforcing structure formed of at least one layer of mutually parallel reinforcing elements making angles of between 65° and 87° with the circumferential direction, anchored on each side of the tire to a bead, each bead extending radially outwards in the form of a sidewall, the sidewalls radially towards the outside meeting a tread, and comprising, under the tread, a crown reinforcing structure consisting of at least one layer of reinforcing elements making angles of between 10° and 45° with the circumferential direction and known as a working layer, radially on the outside of the carcass-type reinforcing structure, wherein, in the sidewalls, the tire comprises at least two axially adjacent carcass reinforcing layer portions, wherein the reinforcing elements of the said carcass reinforcing layer portions are directed on each side of a meridian plane, wherein, at least in the equatorial plane, the reinforcing elements of the carcass reinforcement make an angle of less than 80° with the circumferential direction, wherein at least in the equatorial plane, the reinforcing elements of at least one working layer cross the reinforcing elements of the carcass-type reinforcing structure at an angle greater than 40°, and wherein, when the tire comprises at least two working layers, the reinforcing elements of two superposed working layers cross those of a next layer by an angle of 10° degrees at most.