Boyesen Power Reed Dualstage Yamaha Yz250 03-04 Old-Upload Billet 6061 aluminium arms with

Billet 6061 aluminium arms with blue anodized finish

Yamaha YZ450F 23-24

it's like putting your feet inside your favorite shoes or slippers

KTM EXC400 00-03 rear

If you are looking for impact protection

Boyesen Power Reed Dualstage Yamaha Yz250 03-04 Old-Upload Billet 6061 aluminium arms withOne 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.