BOYESEN RAD VALVE 84-97 KTM125, BLOCK RAD-41, RAD41 Spacer · Yamaha YZ125 / YZ250

· Yamaha YZ125 / YZ250 2016

During the GNCC Enduro championship

For best results

Beta RR 2T 250 Racing 2020

BOYESEN RAD VALVE 84-97 KTM125, BLOCK RAD-41, RAD41 Spacer · Yamaha YZ125 / YZ250Boyesen Rad Valve RAD 41 RAD41 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 or