BOYESEN 90-01 CR500 BOYESEN RAD VALVE, BLOCK RAD03A, RAD-03A, RAD03A C-Frame this helps in the event

this helps in the event of a crash and stays stronger for longer

but can be used as a premix at any OEM-recommended fuel:

- Boyesen Pro Series Reeds combine breakthrough carbon technology with all the advantages of Boyesen's dual-stage Power Reed

125 SX  05-08 FXFL 50300 55OR Orange  OR 144 SX 07-08 FXFL 50300 55OR Orange  OR 200 SX 05-08 FXFL 50300 55OR Orange  OR 250 SX 05 FXFL 50300 55OR Orange  OR 450 EXC-F 05-06 FXFL 50300 55OR Orange  OR 450 SX-F 05-08 FXFL 50300 55OR Orange  OR RFX Hardware Race Series Forged parts are designed

450 EXC Racing (2003)

BOYESEN 90-01 CR500 BOYESEN RAD VALVE, BLOCK RAD03A, RAD-03A, RAD03A C-Frame this helps in the eventBoyesen Rad Valve RAD 03A RAD03A 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