Boyesen Power Reed Dualstage Yamaha Dt250 78-79, Dt400 77-78, Ty250 74-77+84 & 88, Ty350 85-86 Moto 2.5 Perfect for forks

Perfect for forks

400 EXC-F 09-11

250-450 SX-F 19-22

Anti-corrosion

Boyesen Power Reed Dualstage Yamaha Dt250 78-79, Dt400 77-78, Ty250 74-77+84 & 88, Ty350 85-86 Moto 2.5 Perfect for forksOne 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.