Boyesen Power Reed Dualstage Yamaha Yz250 97-98 Armega Yamaha YZ450F 03-07 front

Yamaha YZ450F 03-07 front

wicking material with strategically placed knee brace reinforcement panels

Pro Series Levers are Manufactured using a Metal Forging process to increase Inner Core Strength and Resist Damage In Collisions

Manual override in case of mechanical failure or damage

YZ 250 98-02

Boyesen Power Reed Dualstage Yamaha Yz250 97-98 Armega Yamaha YZ450F 03-07 frontOne reed petal is NOT enough! Boyesen's revolutionary dual stage reed design delivers more usable power than stock. Stock single stage reeds operate most effectively within a relatively narrow RPM range and are limited because of the single stage design. Boyesen's one soft reed on top of one firm flow through reed gives you a wide range of intake control, plus increased intake velocity. Your original reeds can't possibly duplicate that performance.