Boyesen Power Reed Dualstage Yamaha Yz125 03 motocross pants 250 EXC 90-18

250 EXC 90-18

medically certified knee protection whilst still allowing for natural knee movement and comfort

Kawasaki KX125 88-89

FC 350 14-15

KTM 300 XC-W Six Days 2004-2009

Boyesen Power Reed Dualstage Yamaha Yz125 03 motocross pants 250 EXC 90-18One 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.