Moto Tassinari V-Force 4R Reed Valve System-Yamaha-YZ 65-18-24

  

Moto Tassinari V-Force 4R Reed Valve System. The all-new VForce4R has been designed to offer you exceptional durability and overcome the shortcomings of the stock reed valve system. 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. Rubber overmodling on reed tip surface of cage to further enhance petal life.

All-new manifold, reed cage and air guide designed for the VFVorce4R.