Moto Tassinari V-Force 3 Reed Valve - V351B. Overview of Moto Tassinari V-Force 3 Reed Valve - V351B. Advanced reed technology Snap-together cage designed for symmetrical reed petals; does not require separate inner and outer replacement petals Reed tip shape accelerates the air mixture, increasing both airflow and horsepower Innovative design uses no screws For replacement reeds order 18-2307. This item fits the following machines.