Boyesen Power Reed Dualstage Yamaha Yz250 90-96 GPX 4.5 but to keep doing it

but to keep doing it

SDH pin treatment creates an extremely hard chromium carbide layer on the pin’s surface

5L WITH TUBE AND BITE VALVE

It's lightweight

Boyesen Power Reed Dualstage Yamaha Yz250 90-96 GPX 4.5 but to keep doing itOne 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.