Frame mechanism with shock absorbing device for sidecars of motorcycles, which essentially consists of a rigid tubular frame of square shape that has two branches projecting to join the chassis of the motorcycle and a transversal branch parallel to one of the sides of the frame that together with this determines the point of unión of two half crossbows joined together by means of a rod or pin at their free ends to which the bottom of the rear part of the sidecar is fastened by means of suitable supports. In addition, the two transverse sides of the frame extend with a certain upward curvature. (Machine-translation by Google Translate, not legally binding)
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