Boyesen Power Reed Dualstage Honda Cr125 04 vox aperture RFX Pro Oil Filter Cover

RFX Pro Oil Filter Cover (Hard Anodised) Honda CRF250 10-17

Ergonomically pre-shaped legs for more comfort when driving

· Yamaha WR250R 2016Â / WR250X 2016

BMW engines requiring SAE 10W-40 viscosity grade oil

CRF450R 12-16

Boyesen Power Reed Dualstage Honda Cr125 04 vox aperture RFX Pro Oil Filter CoverOne 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.