BOYESEN 86-85 CR250R BOYESEN RAD VALVE TRX250R, BLOCK RAD04A, RAD-04A, RAD-04A Armega Mirror Lens 500EXC-F Six Days 2012-2016

500EXC-F Six Days 2012-2016

250 EXC-F 02-25

The wavy pattern also helps to keep the pads clean

Yamaha YZ125X 2023

BOYESEN 86-85 CR250R BOYESEN RAD VALVE TRX250R, BLOCK RAD04A, RAD-04A, RAD-04A Armega Mirror Lens 500EXC-F Six Days 2012-2016Boyesen Rad Valve RAD 04A RAD04A 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