Laboratory flow analysis proves Boyesen dual-stage reeds out-perform standard reeds They permit greater flow velocity over the entire range of operating pressures 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 Specificatii produs COD PRODUCATOR 6103 GREUTATE 0.0410 Kg IMPACHETARE Bucata MATERIAL Fiberglass MODEL 6103 NOTA Sold each - order one per cylinder (not one per machine) STIL Dual Stage TIP Power Reed HONDA CR 250 R ME03 ALL 2002