Ricambi e Accessori Motocross - CrosShop

CrossShop - Ricambi e Accessori Motocross
Carnago (Va) 21040 Carnago (Va), Lombardia Italia
Tel: 0039 0331 1771876
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Vforce Vforce 4 R reed valve assy

€ 159,00 each Iva included Vforce Code: mtv4R04   Fit my moto? Select your bike   Free shipping (only Italy)
stock:
available

fitment

  • Yamaha Yz 125 2005 - 2023

Product information

Vforce Vforce 4 R reed valve assy

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.

Rubber overmodling on reed tip surface of cage to further enhance petal life

All-new manifold, reed cage and air guide designed for the VFVorce4R

Image reflects the exact shape.

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