Vertex Kolben Yamaha YFZ 450 Quad S 04-09 / R 09-11

; italian made ;pistons ;for high-performance motorcycle racing applications Vertex are the unique piston profiles and compression ratios that are offered in a, b, c and d sizes This variation in sizing, a mere 0 004", allows the piston to be perfectly sized to the cylinder for maximizing power and performance while reducing blow-by and oil consumption You can specify in remarks, piston detail