Seller notes

Athena P400485100016 Big Bore Cylinder Kit (478cc) - 3.00mm Oversize to 98.00mm Not for EFI Models 2004YamahaYFZ4502005YamahaYFZ4502006YamahaYFZ4502007YamahaYFZ4502008YamahaYFZ4502009YamahaYFZ4502010YamahaYFZ450X2011YamahaYFZ450X2007YamahaYFZ450SE2011YamahaYFZ450XSE2006YamahaYFZ450V2007YamahaYFZ450V2008YamahaYFZ450SP Features Kit includes aluminum cylinder with nickel-carbide coating designed with larger water jackets Specially designed, high performance, hard anodized power valves (cannot use O...

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