Moto Tassinari V-Force 4R Reed Valve System V4R26Advanced reed petal resin system, carbon fiber and lay up Pre curved reed petal ensures better seal at the tip Wider reed cage for maximum airflow Combined reed tip area is increased by 10. 5% for better airflow Airfoil shape added to cage tip to increase velocity from the outer ports Long reed stops added to progressively slow reed petal tip velocity for increased petal durability Reduced frontal area of the central wing combined with a more