Boyesen Power Reed Dualstage Kawasaki Kx250 03 GPX 4.5 chamber pistons or bladder

chamber pistons or bladder

wicking material with strategically placed knee brace reinforcement panels

Pivot System

where the base area has been specifically sculpted to give a relief section

Boyesen Power Reed Dualstage Kawasaki Kx250 03 GPX 4.5 chamber pistons or bladderOne 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.