VForce Reed Valve for Yamaha Banshee

Moto Tassinari VForce ATV reed valve with a unique reed valve system design that features double the reed tip surface.

Moto Tassinari VForce Reed Valve Features

• Double the reed tip surface in the unique VForce reed valve system design
• Reed petals only travel half the distance to get the same airflow
• Greater chance of the petals being fully opened, and a better chance of sealing when they are closed
• Increased bottom end, stronger mid-range and longer top-end
• Greater efficiency due to reduced reed petal travel
• More airflow means more horsepower
• Reduced reed petal wear
• Screw free design eliminates risk of screws going through motor
• Screw free design enables super quick reed petal changes
• All-new reed petal resin system, carbon fibre and lay-up
• Pre-curved reed petal ensures better seal at tip
• Wider reed cage for maximum airflow
• Combined reed tip area increased by 10.5% resulting in increased total air flow
• Airfoil shape added to cage tip to increase air velocity from outer ports
• Long reed stops added to progressively slow petal tip velocity, for increased petal durability
• Reduced frontal area of central wing by 15.6% combined with a more aerodynamic shape

Moto Tassinari VForce Reed Valve Specifications

• Brand: Moto Tassinari
• Product type: Reed valve
• Model: VForce
• Design: Screw free
• Reed petals: Pre-curved, carbon fibre with a new resin system and lay-up
• Combined reed tip area: Increased by 10.5%
• Central wing frontal area: Reduced by 15.6%

A reed petal never truly closes in a classic sense, as it is always in movement. An engine operating at 8,000 RPM results in a reed petal opening and closing 133 times in one second. Since the petals only travel half the distance, they generally last longer as they receive less wear.