Vehicle having tires with reinforced sidewalls

A vehicle of motorcycle type having two axle systems each equipped with a mounted assembly consisting of a wheel and a tire, each of the tires comprising at least one reinforcing structure of carcass type, formed by reinforcing elements, anchored on each side of the tire to a bead, each bead extending radially outward through a sidewall, the sidewalls joining radially outward with a tire tread, wherein each of the tires comprises, at least in a part of each sidewall, at least one additional layer of reinforcing elements that is axially adjacent to the carcass-type reinforcing structure, wherein the reinforcing elements of the additional layer form, with the circumferential direction, an angle of between 20° and 60°, wherein the orientation of the reinforcing elements of the additional layer in a sidewall is symmetrical to the orientation of the reinforcing elements of the additional layer in the other sidewall in relation to the equatorial plane, wherein, the angle formed by the plane comprising a reinforcing element of an additional layer of the tire fitted on the rear axle system with a radial plane comprising the radially inner end of said reinforcing element, is oriented in the direction of rotation of the mounted assembly corresponding to the forward movement of the vehicle, and wherein the angle formed by the plane comprising a reinforcing element of an additional layer of the tire fitted on the front axle system with a radial plane comprising the radially inner end of said reinforcing element, is oriented in the direction opposite to the direction of rotation of the mounted assembly corresponding to the forward movement of the vehicle.