Boyesen Power Reed Trial Beta Evo 250-300 09-21 Bike Maintenance while the Platinum finish reduces

while the Platinum finish reduces rider maintenance and helps protect the pipe from Nature's elements

450 EXC-F 17-19

PERFORMANCE CHAIN GUIDE

2 D cm (expanded)

Boyesen Power Reed Trial Beta Evo 250-300 09-21 Bike Maintenance while the Platinum finish reducesOne 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.