Boyesen Power Reed Dualstage Kawasaki Kx125 03 vox aperture Yamaha YZ125 1989

Yamaha YZ125 1989

· KTM 150EXC / 250EXC / 300EXC 2023

high performance and easy modulation

Fitted with adjustable shoulder strap and pressure relief valve

MC125-250 21-23

Boyesen Power Reed Dualstage Kawasaki Kx125 03 vox aperture Yamaha YZ125 1989One 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.