Boyesen Power Reed Trial Beta Rev3 125-200 00-08 4.5 Hydradri KX250F 17-20

KX250F 17-20

also included is a new style low profile tip bolt which stays tighter for longer

· Honda XR650R 2006

RFX Race Series Mapping Switch Yamaha YZF250 20-22 YZF450 20-22

TX 300I 20-22

Boyesen Power Reed Trial Beta Rev3 125-200 00-08 4.5 Hydradri KX250F 17-20One 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.