MOTO TASSINARI REED VALVE VFORCE 4 KTM 250 300 SX EXC MXC HUSQVARNA TE TC V417A All-new reed petal resin system, carbon fiber and lay-up Pre-curved reed petal ensures better seal at tip Combined reed tip area increased by 10.5% resulting in increased total air flow Long reed stops added to progressively slow petal tip velocity, for increased petal durability Airfoil shape added to cage tip to increase air velocity from outer ports