VForce4 reed box Yamaha RD 350/Banshee

V-FORCE 4 reed box for Yamaha RD and Banshee 350cc

On Vespa this box is compatible with MRP reed boxes.

This part number is sold separately, to purchase the kit of 2 you need part number V4144-2

Unique design of the VForce reed valve system features twice the surface area of the reed tip over a conventional reed valve design. This has two main benefits:

1) The reed petals only travel half the distance as a conventional reed valve design to obtain the same airflow.

2) Because the reed petals only need to travel half the distance as a conventional reed valve design, there is a greater chance of them opening fully, as well as a better chance of sealing when "closed", making more horsepower, and a noticeable change to gas response.

This Moto Tassinari V-Force intake reed system features a patented, state-of-the-art membrane valve design.

The design accelerates the airflow mixture to bring more horsepower to the engine with a noticeable improvement to throttle response, and a significant increase in performance on the bike.

This design has more advantages than the one found on the stock bikes, as the blades offer twice the surface area, so they travel half the distance and the same airflow and fuel flow is achieved.

The combination results in explosive acceleration, improved throttle response and better fuel efficiency.