Moto Tassinari V-Force 4 Reed Valve System for 2003-2016 KTM 250 300 SX XC EXC

  

V-Force 4 Reed Valve System Moto Tassinari 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 airflow.

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.