The VForce3 reed valve was born from the close collaboration with the American manufacturer Moto Tassinari known for its high performance valves in the cross engine sector. The optimization of the flow and the passage as well as the patented structure of the double V-diaphragm guarantee a considerable improvement in the filling of the motor shaft housing thanks to the almost doubled inlet section. To allow maximum exploitation of the performance, the 28mm venturi insert, which is part of the supply, should be mounted. An evolution for 50cc two-stroke automatic engines.