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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 |
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