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VForce4Ri utilises a winged air guide that increases air velocity for a dramatic gain in throttle response. Paired with the new winged air guide is a custom intake manifold boot that offers a straighter shot to the intake that greatly enhances both airflow and performance. The VForce4Ri also incorporates carbon fibre reed petals designed to ensure superior reliability and maximum performance.

 

VForce4R offers enhanced reed petal life as well as all the added benefits of the unique VForce reed valve design. Vforce 4 reed valves are the world leading design and performance reed valve with gains in power no other reed valve standard or aftermarket can match. With a twin stack system you get twice the tip surface and with petals only needing to travel half the distance of a normal single stack, Vforce4 air/fuel control is massively improved when compared to stock.

 

Vforce 3 reed valves are the world leading design and performance reed valve with gains in power no other reed valve standard or aftermarket can match. with a twin stack system you get twice the tip surface and with petals only needing to travel half the distance of a normal single stack, Vforce3 air/fuel control is massively improved when compared to stock

 

Vforce4X for the Yamaha YZ250 and YZ250X motorcycles has been designed to offer you exceptional durability and overcome the shortcomings of the stock reed valve system.

Vforce Reed Valve - Yamaha

PrezzoA partire da £156,99

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  • Fitment

    Part#

    YAMAHA-

    YZ65 2018-Onwards

    (Vforce 4Ri)

    V4R82Bi

    YAMAHA-

    YZ85 2002-Onwards

    (Vforce 4Ri)

    V4R82A-i

    YAMAHA-

    YZ125 1996-2004

    (Vforce 3)

    V302A

    YAMAHA-

    YZ125 2005-2021

    (Vforce 3)

    V304A

    YAMAHA-

    YZ125 2005-2022

    (Vforce 4R)

    V4R04

    YAMAHA-

    YZ250 1989-1996

    (Vforce 3)

    V303FM

    YAMAHA-

    YZ250 1997-Onwards

    (Vforce 3)

    V307A

    YAMAHA-

    YZ250 1997-Onwards

    (Vforce4X)

    V4X07EM

    YAMAHA-

    Blaster All Years

    (Vforce 4)

    V4145-1

    YAMAHA-

    Banshee All Years

    (Vforce 4)

    V4144
       

     

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