Boyesens' revolutionary dual-stage Pro Series 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. Increased performance from start-up to top acceleration.
Top racers and knowledgeable riders coast to coast make Boyesen Racing Reeds their first step in getting more power, more performance, and more pleasure from their high performance bikes.
Offers the quickest acceleration any reed can offer.