18 19 Yamaha YZ450F YZ 450F 102mm 500cc 500 13.51 Big Bore Athena CP Piston Kit

  

Athena / CP Carrillo / AZ Quad Parts Conglomerate Kit. 102mm 500cc Big Bore CP Custom Piston Kit! Perfect For The Biggest Big Bore Kit Or Snow Bike Conversion. Fits Yamaha YZ450F Dirt Bike Models Years 2018 & 2019. Also Fits Yamaha YZ450FX Dirt Bike Models Years 2019 & 2020.

CP Cariilo Piston Kit (Includes, Piston, Pin, Rings & Clips) (AZ Quad Parts). 13.5:1 Compression Ratio.

Works With Up To +2mm Larger Valves! It will work with your stock head and valves.