Boyesen Power Reed Dualstage Gilera/Aprilia 50Cc Air Filters providing strength and durability while

providing strength and durability while keeping costs low

· KTM 85SX 2005

KTM SXF525 03 rear

Honda CR250R 1986

Boyesen Power Reed Dualstage Gilera/Aprilia 50Cc Air Filters providing strength and durability whileOne 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.