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09-12 Honda CRF450R CRF 450R 100mm 490cc Big Bore Cylinder Athena JE Piston Kit
Athena / JE Pistons / AZ Quad Parts Conglomerate Kit. 100mm 490cc Big Bore Cylinder Top End Kit! This Is The Best Big Bore Kit On The Market!
Fits Honda CRF450R Years 2009 2010 2011 2012 ONLY. 100mm 490cc Nikasil Athena Big Bore Cylinder. JE Pro Series Piston Kit (Includes, Piston, Pin, Rings & Clips). 12.5:1 Compression Ratio (Perfect For Pump Gas).
Athena Complete Top End Gasket Set. Larger Water Jackets To Keep The Motor Cooler! It will work with your stock head and valves.