Boyesen Rad Valve Yamaha Yz125 05-21, Yz125X 20-22 no-returns 350 XC-F 19-22

350 XC-F 19-22

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FE 450 17-18

unlike the conventional disc guards

Boyesen Rad Valve Yamaha Yz125 05-21, Yz125X 20-22 no-returns 350 XC-F 19-22Boyesen RAD Valves are the most advanced air intake system you can add to your bike! The RAD Valve's seamless, one piece, precision casting and continuous aeroform surfaces ensure maximum flow velocities and instant, explosive movement of air particles the moment you turn the throttle. Integrated into the seamless inner chamber are 4 way aerodynamic directional dividers that distribute the angled charge evenly without flow loss. Each channel has its