BOYESEN 1998-99 CR125 BOY.RAD VALVE RAD-01D kits-jersey-nitro SE-R125 25-

SE-R125 25-

well-loved look as if it's seen countless adventures

Allows inspection and adjustment of ignition timing

Yamaha YZ450FX (2019-2024)

FX 450 18-20

BOYESEN 1998-99 CR125 BOY.RAD VALVE RAD-01D kits-jersey-nitro SE-R125 25-Boyesen Rad Valve RAD 01D RAD01D 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