Boyesen's revolutionary dual-stage reed design delivers more usable power than stock.
Your original one-stage reed operates most effectively only within a narrow RPM range.
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.

* Dual stage reeds
* Minor change gives major H.P. improvements
* Faster opening and closing
* Greater low pressure (Low-throttle) response
* Greater velocity and flow area
* Longer overall life
* No engine damage if broken
* Carbon pro has new carbon fiber reed for quicker response

More Reeds here in our Catalog Web Store