RAD VALVE YZ250 97-98

Maintain flow velocity through the valve and redirect intake charge for more even distribution to intake ports

Made of one-piece aluminum castings and bolts in easily; no modifications necessary

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 valve provides plenty of torque