Boyesen Power Reed Dualstage Yamaha Dt250 78-79, Dt400 77-78, Ty250 74-77+84 & 88, Ty350 85-86 Engine Service Strategically placed impact pads add

Strategically placed impact pads add an extra layer of protection

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UFO Radiator Covers (Green) Kawasaki KX80 91-97

KTM 400 XCF-W Six Days 2001-2002

Perfect combination of durable

Boyesen Power Reed Dualstage Yamaha Dt250 78-79, Dt400 77-78, Ty250 74-77+84 & 88, Ty350 85-86 Engine Service Strategically placed impact pads addOne 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.