Athena (P400510100011) 95.5mm 450cc Standard Bore Cylinder Kit Kuryakyn Engineereed specifically for Yamaha dirt

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

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Athena (P400510100011) 95.5mm 450cc Standard Bore Cylinder Kit Kuryakyn Engineereed specifically for Yamaha dirtBrand: Athena Features: Contracted from aluminum, the cylinder is lined with a nickel carbide coating for durable, reliable performance Built from race proven designs Chosen by the top race teams in all forms of racing including super cross, motocross, GNCC, superbike, and more Fits the following rides Contracted from aluminum, the cylinder is lined with a nickel carbide coating for durable, reliable performance. Features a forged piston that's been