Maintain flow velocity through the valve and redirect intake charge for more even distribution to intake ports. Provide quicker, sharper throttle response and more horsepower throughout rpm range. Specially-designed reed cage holds Boyesen's patented dual-stage reeds.
Boyesen's hot RAD valves ratchet up your torque. One-piece cast aluminum bolts in easily.Order one set per cylinder. This item fits to following bikes.
Yamaha YZ 85 SW 2020. We will accept your request at our earliest opportunity. This includes Republic Of Ireland.
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