Thesuspensionsystemforamotorvehiclewheel,particularly for a motorcycle wheel, comprises two upright swinging arms (11, 12) disposed in a plane parallel to the plane of the wheel (9) and which are pivoted at their upper ends to a supporting structure (6) of the vehicle and at their lower ends to a wheel-carrying element (10) which through a prolongation (110) extends forward or backward beyond the two pivotal connections (211, 212) between the two swinging arms (11, 12) and the wheel-carrying element (10). The wheel (9) is mounted on the said prolongation (110) at the wheel-carrying element (10), and the wheel axle (8) is located on an ideal straight line (13) passing through the pivotal connections (211, 212) of the two swinging arms (11, 12) to the wheel-carrying element (10), or slightly above or below the said straight line (13). A shock absorber (15) associated to resilient means (16), is pivoted by its upper end to the supporting structure (6) or to one of the swinging arms (11, 12), and by its lower end to the wheel-carrying element (10), at a position (215) located below the said ideal straight line (13), within an area substantially included between the median perpendicular (17) to the segment between the pivotal connections (211, 212) of the two swinging arms (11, 12) to the wheel-carrying arm (110) and the median perpendicular (18) to the segment between the axle (8) of wheel (9) and the pivotal connection (211) of the swinging arm (11) which is nearer to the wheel axle (8), to the wheel-carrying arm (110).