New Moto Tassinari VForce4 Reed Valve for KTM 250/300 04-11 - readily available! Enormously improved on stock reed cage and on VForce3, available at the same price from Faster96 - www.faster96.com. 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 A larger flow potential provides better acceleration and more horsepower throughout the power band Crisp throttle response out of the corners Composite material with rubber overmold reed cages provide longer reed life Adjustable reed stops