Moto Tassinari V-FORCE 3 REED VALVE V301C fits Husqvarna

VForce4R Reed Valve System by Moto Tassinari®. The all-new VForce4 is built upon the solid foundation that has made the VForce3 such a success for the last 10 years. While the VForce3 has been continually refined over the years, this is a complete redesign of the entire system.Notes: This is a Race Only product that is to be used solely for competition. It cannot be used on vehicles that are operated on public streets, roads or highways. Its use is limited to closed-course and open-course racing that is formally sanctioned by a recognized racing organization. Any other use, including recreational off-road use, could be in violation of local, state and federal laws.Double the reed tip surface over a conventional reed valve designIncreased bottom end, stronger mid-range and longer top-endGreater efficiency due to reduced reed petal travelMore airflow means more horsepowerReduced reed petal wearScrew free design eliminates risk of screws going through motorScrew free design enables super quick reed petal changesPrecise manufacturing and high-grade materialsCarefully developed for the highest level of qualityStrict quality control ensures high dependabilityIncludes:Moto Tassinari and VForce4R decalsDetailed installation instructionsComplete VForce4R reed valve system (including reed petals) and gasketStandard VForce Reed Valve FeaturesDouble the reed tip surface over a conventional reed valve designIncreased bottom end, stronger mid-range and longer top-endGreater efficiency due to reduced reed petal travelMore airflow means more horsepowerReduced reed petal wearScrew free design eliminates risk of screws going through motorScrew free design enables super quick reed petal changesNew and Improved VForce4 FeaturesAll-new reed petal resin system, carbon fiber and lay-upPre-curved reed petal ensures better seal at tipWider reed cage for maximum airflowCombined reed tip area increased by 10.5% resulting in increased total air flowAirfoil shape added to cage tip to increase air velocity from outer portsLong reed stops added to progressively slow petal tip velocity, for increased petal durabilityReduced frontal area of central wing by 15.6% combined with a more aerodynamic shapeAll-New VForce4R FeaturesRubber overmodling on reed tip surface of cage to further enhance petal lifePre-curved reed petal ensures better seal at tipJokingly say, "The only thing we didn't change is the bolt pattern." However this is actually quite true. All the components that go into making a VForce reed valve system have been significantly changed since the VForce3.The unique design of the VForce reed valve system features double the reed tip surface over a conventional reed valve design. This has two major benefits: 1) The reed petals only travel half the distance as a conventional reed valve design to get the same airflow. 2) Because the reed petals only need to travel half the distance of that on a conventional reed valve design, there is a greater chance of them being fully opened as well as a better chance of sealing when they are "closed". A reed petal never truly "closes" in a classic sense, as it is always in movement. Consider this, an engine operating at 8,000 RPM results in a reed petal opening and closing 133 times in one second. This fact, sheds light on another VForce advantage. Since the petals are only traveling half the distance, they generally last longer are they receive less wear than the reed petals on a conventional reed valve design.