The invention relates to a motorcycle comprising a frame, in which at least an engine is mounted; a front fork pivoted to the frame, in which at least a front wheel is mounted; a rear fork pivoted to the frame, in which at least a rear wheel to be driven by the engine is mounted; as well as a spring system connected to the rear fork and to the frame, wherein the spring system is arranged for exerting forces on the frame in a forward direction substantially parallel to the direction of movement of the motorcycle.