BOYESEN 1998 RM125 BOYESEN RAD BLOCK RAD-21D pink RM-Z250 10-12

RM-Z250 10-12

2017-2022 Husqvarna FX 450

Kawasaki KXF250/450 13-20

Stronger than standard PW50 top plate

525 XC Quad (2008-2012)

BOYESEN 1998 RM125 BOYESEN RAD BLOCK RAD-21D pink RM-Z250 10-12Boyesen Rad Valve RAD 21D RAD21D 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