Boyesen Power Reed Dualstage Yamaha Yz250 84-88 Polisport Redesigned instep and Achilles accordion

Redesigned instep and Achilles accordion flex zones construction for superior comfort

Total Leatt protection score of 18 points

TE 125-300 10-14

· Suzuki RMZ450 2010

Boyesen Power Reed Dualstage Yamaha Yz250 84-88 Polisport Redesigned instep and Achilles accordionOne 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.