Athena (S4F05400011B) 53, 96mm Diameter Piston Kit

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Athena (S4F05400011B) 53, 96mm Diameter Piston Kit Features

• Engineereed specifically for Yamaha dirt bikes to be resistant to impact and fatigue

• Built from race proven designs to Yamaha factory specifications

• Chosen by the top race teams in all forms of racing including super cross, motocross, GNCC, superbike, and more

• Maximizes HP and service life in Yamaha Dirt Bikes and offroad vehicles

• Fits the following rides Yamaha WR 125 1997-2004; Yamaha YZ 125 1997-2004;

About Athena (S4F05400011B) 53, 96mm Diameter Piston Kit

Cast lite pistons, produced by metal casting process, are lighter than OEM. Cast lite pistons are Tin plating coated, improving sliding and decreasing friction.