Boyesen Power Reed Dualstage Yamaha Yz125 88-92, Tri-Z 250 85-86 Air Filter Oils & Cleaners non-toxic and biodegradable

non-toxic and biodegradable

This hard-shell lower arm and soft 3DF impact foam elbow combination provide comfort and premium protection

YZ125-250X 16-25

Improved Traction: Adaptive design provides grip and control in deep sand

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

Boyesen Power Reed Dualstage Yamaha Yz125 88-92, Tri-Z 250 85-86 Air Filter Oils & Cleaners non-toxic and biodegradableOne 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.