Boyesen Power Reed Dualstage Yamaha Yz250 03-04 Old-Upload 125RR 18-23

125RR 18-23

Flexible direct-inject knuckle provides lightweight protection

please measure across the silencer from left to right

Perfect fit and great protection for your dirt bike's fork guards

Yamaha YZ450F 23-24

Boyesen Power Reed Dualstage Yamaha Yz250 03-04 Old-Upload 125RR 18-23One 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.