Boyesen Power Reed Trial Sherco 2T St250-290 01-09 Accessories & Glasses · Yamaha WR450F 2007

· Yamaha WR450F 2007

Dimensions 55 H x 35

RFX Pro series F7 Taper Bar pads to fit 28

Capacity: 29 litres (expanded)

External R/H Thread M27 x Pitch 1

Boyesen Power Reed Trial Sherco 2T St250-290 01-09 Accessories & Glasses · Yamaha WR450F 2007One 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.