20 21 22 Honda CRF450R CRF 450R RX 100mm Big Bore Cylinder DRAG RACE CP Piston

  

Athena / CP Carrillo / AZ Quad Parts Conglomerate Kit. 100mm 490cc Big Bore Cylinder Top End Kit! This Is The Best Big Bore Kit On The Market And Is the Best Set Up For Drag Racing!!

Fits Honda CRF450R / CRF450RX / CRF450RWE. Years 2020 2021 2022 ONLY. 100mm 490cc Nikasil Athena Big Bore Cylinder. Larger Water Jackets To Keep The Motor Cooler! CP Carrillo Piston Kit (Includes, Piston, Pin, Rings & Clips).

Custom 14.3:1 Compression Ratio (RACE GAS OR ALCOHOL ONLY). Piston Kit Will Handle Up To +1mm Bigger Valves! Athena Complete Top End Gasket Set. For the most reliability and longevity we recommend. Installing this kit with a new OEM crankshaft or preferably with our CP. This kit must be installed by a qualified professional. And dyno tuned to ensure the proper AFR. Failure to adhere to our.