Boyesen Power Reed Dualstage Yamaha Yz65 18-22 Raceline Using advanced computer engineering alongside

Using advanced computer engineering alongside CNC machining

Polisport's airbox covers are produced with our exclusive technologies - IPD (in-mold plastic decals) and DGP(durable gloss propylene) - the reason our parts are more resistant and durable than the stock ones

Never apply the cleaning fluid directly onto the carpet

The Ti-6 Pro is the next generation of professional level race exhausts

Boyesen Power Reed Dualstage Yamaha Yz65 18-22 Raceline Using advanced computer engineering alongsideOne 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.