Boyesen Power Reed Dualstage Yamaha Yz250 84-88 Moto washable lining & more

washable lining & more

Poli-sport's rear fenders + Side Panels for BETA are produced with Poli-sport's exclusive technology - DGP (durable gloss polypropylene) - for this reason our body protections are more durable and have a perfect combination of resistance and flexibility

tested in the field

Developed by MOTOREX Racing Lab in collaboration with Twin Air

Boyesen Power Reed Dualstage Yamaha Yz250 84-88 Moto washable lining & moreOne 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.