Seller notes

1993-2024 Yamaha YZ80/85 Vforce 4R Reed Valve System V4R82A-i By Moto Tassinari VForce 4 Reed Valve SystemDescription 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 i...

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