Boyesen Power Reed Dualstage Yamaha Tdr250, Tzr250 -90 kecks clothing Motorex Racing Bio Dirt Remover

Motorex Racing Bio Dirt Remover is a cleaner in powder form specially developed for off-road motorbikes and quads (ATVs) that feature a reusable foam air filter

Kawasaki KX450 19-23

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Kawasaki KX125 04-08 –

Boyesen Power Reed Dualstage Yamaha Tdr250, Tzr250 -90 kecks clothing Motorex Racing Bio Dirt RemoverOne 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.