Seller notes

Athena / CP Carrillo / AZ Quad Parts Conglomerate Kit 102mm 500cc Big Bore Cylinder Top End Kit!This Is The Best Big Bore Kit On The Market! Fits Yamaha YZ450FX Dirt Bike Models Years 2019 And 2020 ONLY This kit includes: 102mm 500cc Nikasil Athena Big Bore CylinderLarger Water Jackets Keep Your Motor Cooler!CP Cariilo Piston Kit (Includes, Piston, Pin, Rings & Clips)14:1 Compression Ratio (Race Gas ONLY)Athena Complete Top End Gasket SetNGK Spark PlugMust be installed by a qualified professiona...

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