Boyesen Power Reed Dualstage Yamaha Yz250 99-00 Soft See Search by Vehicle for

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› Adapts to road or dirt

KTM SX150 09-23 rear

Motocross or Enduro - you no longer have to chose

CRF 150F 03-17

Boyesen Power Reed Dualstage Yamaha Yz250 99-00 Soft See Search by Vehicle forOne 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.