Abstract: A golf club with optical indicating system includes a head having an elongate planar face defining the hitting surface of the golf club. Above the hitting surface, at least a pair of spaced-parallel forwardly protruding guides are located extending perpendicularly to the hitting surface. The guides define the indicating system that visually helps the player to determine the best path between the position of the ball on the golf green and the hole. The guides may be integral with the body of the club's head or may be separate parts thereof.

Abstract: A device for controlling the operation of a clutch in a motorcycle, the device being capable of changing the point wherein the clutch operating cable is fixed to the clutch lever in the handle bar of the motorcycle, to vary the characteristics of lever operation and the relationship between the lever movement and the resulting cable movement, the clutch lever comprising more than one anchoring points to fix the cable thereto.

Abstract: The present invention is referred to an exhausting valve lid for motorcycles comprising a lid body including several orifices for fastening said lid to the motorcycle engine. Said lid includes means for controlling the force to be applied to the exhausting valve regulating means, controlling therefore the time at which the exhausting valve is to be opened. Said means for controlling the force to be applied comprises a hollow housing projected from the outer surface of lid body, said housing receives a cylindrical hollow aluminum bolt engaged to a pressing spring coupled to said exhausting valve regulating means.