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Using the principles of centrifugal force
Does not fit for all of these model years
Finally you can have them in the aftermarket for most makes and models off-road
Every model is purpose-built to provide highly efficient and long-lasting power for whatever it is you ride
BOYESEN Rad membraan systeem - Yamaha YZ125 Using the principles of centrifugalBoyesen engineers have applied a range of technical innovations to their range of intake systems to ensure optimal power, torque and smoothness: Aerodynamic Surface Optimization, Model Specific Reed Petal Tensioning (specific valve for each model) , Material Fuel Resistance (materials resistant to hydrocarbons) and Multi Stage Reed Timing (valves that open in stages). The BOYESEN valve diaphragms have been specially developed for each engine model
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