Boyesen Power Reed Dualstage Kawasaki Kx/Kdx 80-85 79-85, Honda Cr80 86, Yz60-80 75-83 Tech 7 The shin bone (Tibia) or

The shin bone (Tibia) or the thigh bone (Femur)

Removable USFS approved spark arrestor

YZ450F 08-22

but utilizes a platinum plating on the body to protect it from everyday elements

Boyesen Power Reed Dualstage Kawasaki Kx/Kdx 80-85 79-85, Honda Cr80 86, Yz60-80 75-83 Tech 7 The shin bone (Tibia) orOne 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.