Boyesen Power Reed Dualstage Yamaha Yz250 78-82 + 89 Casual Clothing Asymmetric design for left &

Asymmetric design for left & right legs

CNC Machined for a tighter tolerance

For something with more protection check out the 4

5 Beta/Sherco/Scorpa

Versatile grip and durability

Boyesen Power Reed Dualstage Yamaha Yz250 78-82 + 89 Casual Clothing Asymmetric design for left &One 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.