V-Force ATV Accessories: Fuel and Air Intake Systems

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  • V-Force 3 Reed Valve

    V-Force 3 Reed Valve

    Jeffrey in MD


    people go around saying Boyesen Rad Valve is all that & bla bla bla, that's just because they never Bolted one of these Babies on & don't have all the facts, 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 or a Boyesen reed valve design. I LOVE this Product it made my Already Fast 2015 Yamaha YZ 250 even faster & the Power Band even Broader.

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  • V-Force 3 Replacement Reeds

    V-Force 3 Replacement Reeds

    Chris in NJ

    Super easy to replace

    Really easy to replace. Remember to order 4 reed gaskets just to make sure you never have a intake leaks.

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  • V-Force 4 Reed Valve

    V-Force 4 Reed Valve

    STEVE in MO


    love it, mixed with a spacer and a 28mm pwk all is smooth and strong, all my upgrades have shifted the power band and adding this with the spacer broadened the curve in a good way

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  • V-Force Air4orce Intake System

    V-Force Air4orce Intake System


    good power

    good power on the bottom end. very noticeable power after first ride. did not have to re-jet. would be great if lower priced for the power gained. so power to price was a negative.

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