Boyesen Power Reed Dualstage Yamaha Yz250 99-00 Chains & Spares Refer to label for care

Refer to label for care information

Avoid getting the gel on the tyre beads

easy and tight securing fit

KTM 350 EXC 24

Boyesen Power Reed Dualstage Yamaha Yz250 99-00 Chains & Spares Refer to label for careOne 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.