Moto Tassinari V4144-2 V-Force 4 Reed Valve System engine-crankcase-components-crankshaft-assemblies 1994-1996 Polaris 440 XCR SP

1994-1996 Polaris 440 XCR SP

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Consistent balance and precision machining

Fits snug in the rear bed

Moto Tassinari V4144-2 V-Force 4 Reed Valve System engine-crankcase-components-crankshaft-assemblies 1994-1996 Polaris 440 XCR SPAll new design. Has all new 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 1 2% 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