Boyesen Power Reed Dualstage Yamaha Yz125 88-92, Tri-Z 250 85-86 Air Filter Oils & Cleaners Also improved is the fit

Also improved is the fit on the crossbrace which helps decrease movement during use

Fitments: SUZUKI 1989-1992 RM125/RM250

FRONT NUMBER PLATE - WHITE OEM

YZ125-250X 16-25

Neck-brace compatible with mounting straps

Boyesen Power Reed Dualstage Yamaha Yz125 88-92, Tri-Z 250 85-86 Air Filter Oils & Cleaners Also improved is the fitOne 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.