"The V-Force reed valve block from TASSINARI is an absolute high-end item. By doubling the size of the intake cross section, the optimized intake and design flow of the double Vs results in a clearly superior filling of the motor housing! The reed valve block is har wearing and available with diaphragm valve 4 (one-piece petal) or 8 (petal slot). To use the V TASSINARI Lamellar force, the sealing surface of the fitting must be completely level. Connection pieces which were originally designed for other reed valves and which have a projection must be modified accordingly. The reed valve housing can also be adapted to the size of the V-Force. Not only the TASSINARI warehouse valve block barrel for the MALOSSI reed valve manifold, but also to satisfy the high end reed valve manifolds from FALC, QUATTRINI and PARMAKIT. The cylinder and tuning ROTAX YAMAHA RD350 reed valve housing can also be equipped with a V-Force TASSINARI reed valve after some slight modifications. The 4-petal hotel (petal slot on the outside of the block) TPR V-Force reed valve block from PERFORMANCE TOP is a slightly less alternative for the MALOSSI reed valve manifold. Like the V TASSINARI Forza, the TPR block has been designed without limiter of reed valve petals. This ensures optimal filling, even at high engine speeds. Conclusion: High End Reed valve block for maximum performance. SIP-TIP: those for which the original is not enough are in the right place with the valve of the manifold MMW LML reed (for example, part 40806J00 does not start). SIP Community user poohpapa06 by non TP9924400: "You should swap for the Malossi reed valve when you buy the Malossi reed valve kit! The Tassinari is similar and gives you 1 CV more. "When using a Tassinari lamellar, the collector sealing surface must be planar. Manifolds that are originally manufactured for other types of reed valves could have an overhang and need to be modified / planed. "