BOYESEN 1999 YZ250 BOY.RAD VALVE RAD-34E Oil & Fuel Filters fuel usage varies by riding

fuel usage varies by riding style

A percentage of the proceeds from each purchase directly contributes to the Birchall brothers' racing fund

KTM 525 SX-F 2003-2007

Front Fender - Red - 8565200017

BOYESEN 1999 YZ250 BOY.RAD VALVE RAD-34E Oil & Fuel Filters fuel usage varies by ridingBoyesen Rad Valve RAD 34E RAD34E Now delivered with carbon fiber reeds for even greater performance gains Maintains flow velocity through the valve and redirects intake charge for more even distribution to the intake ports Sharper, quicker throttle response Added torque improves performance on hills, through corners and over technical jumps Increases horsepower in low , middle and especially the top end ranges One piece aluminum casting, no trimming