Features: Respond quickly and accurately to piston speed changes for smooth, dependable throttle response. High-tech carbon fiber with all the advantages of Boyesen's exclusive dual-stage reed design. Offers the quickest acceleration any reed can offer;...
Features: Shims “average” 47.0 compared to the 46.0 maximum on the Apparent Rockwell Hardness “C” scale. For shim-adjusted vehicles.