V-Force 4 Reed System With Carbon Fiber Petals - V4144-2 - Yamaha Banshee

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V-FORCE 4 REED SYSTEM - V4144-2

Application: Yamaha Banshee
Model Years: All

Application: Yamaha RD250, RD350 and RD400 (see note below)
Model Years: All

Yamaha RD250, 350 & 400 owners please note: Installing these reed valves will require modification of the intake port of the cylinders. While the bolt pattern is the same, the valve will not just slide in. Material removal on the intake port walls will be required. If you do not have the ability to carry out the modifications please do not purchase the valves.

V-FORCE 4 FEATURES

• All-new reed petal resin system, carbon fiber 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