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Boyesen Rad Valve


  • Redirects intake charge for even distribution to intake ports
  • Constant flow velocity is maintained for instant throttle response and more horsepower
  • One piece design for simple installation
  • Each Boyesen Rad valve is unique and tailor made to fit your model, year and cc displacement
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This Product Fits:

CR125R 2005-2007
CR500R 1985-2001
KX65 2000-2017
RM125 2004-2007
RM250 2004-2008
YZ85 2002-2017
YZ85 Big Wheel 2002-2015