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Athena 47mm Piston Kit with Rings, 10mm Wrist Pin Cir Clips
Piston measure's out to 47.6mm which is common size for Aluminum Sport/Racing Cylinder Kits from Athena Stage6, Malossi and Polini NCY.
Piston is one ring open window, make sure this is correct for your kit.
Three are three sizes to choose from
You would use an oversize if your cylinder has been worn down from use.
48 Lower States Only