BOYESEN 90-01 CR500 BOYESEN RAD VALVE, BLOCK RAD03A, RAD-03A, RAD03A Renthal YEAR 1998: Require accessory 0017571

YEAR 1998: Require accessory 0017571

(MPN): 99312

RR 525 Enduro Racing

Engineered for all forms of off-road riding

BOYESEN 90-01 CR500 BOYESEN RAD VALVE, BLOCK RAD03A, RAD-03A, RAD03A Renthal YEAR 1998: Require accessory 0017571Boyesen 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