143cc Big Bore Kit - 2014-Current CRF125F/FB chinese We've increased the thickness of

We've increased the thickness of the aluminum side plates and given it a modern look with see through cutouts

The kit also includes an all aluminum ceramic plated 67mm cylinder with a skirt

This is one of the easiest tunable carburetors for a high HP KLX110 & Daytona engines

This system is NOT compliant with the California Environmental Protection Agency (E

Quality bearings ensure long life and performance

143cc Big Bore Kit - 2014-Current CRF125F/FB chinese We've increased the thickness of143cc Big Bore Kit by Rad Speed & Design (56mm Bore) Fitment: 2014 Current Honda CRF125F & CRF125FB Kit Includes: OEM Quality 143cc Cylinder 56mm Wiseco Forged Piston w hardened anodizing and Teflon coated skirts Wrist pin and clips Piston Rings NGK Spark Plug Cometic Gasket Kit Options: 11: 1 Compression ratio piston (91 Octane Pump) 13: 1 Compression ratio piston (104 Octane+ Race Gas) Serious fun for the small bore. Proudly made in the USA! Please