Boyesen Power Reed Trial Sherco 2T St250/290/300 10-15, Scorpa Twenty 250/300 15-16 Frame Protectors Yamaha YZ 125-450 14-18

Yamaha YZ 125-450 14-18

250F FREE-RIDE 18-20

Integrated ventilation pads for improved air circulation while riding

Highly absorbing (water

Boyesen Power Reed Trial Sherco 2T St250/290/300 10-15, Scorpa Twenty 250/300 15-16 Frame Protectors Yamaha YZ 125-450 14-18One 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.