143cc Big Bore Kit - 2014-Current CRF125F/FB

143cc Big Bore Kit - 2014-Current CRF125F/FB

$319.99
{{option.name}}: {{selected_options[option.position]}}
{{value_obj.value}}

143cc Big Bore Kit by Rad Speed & Design Fitment: 2014-Current Honda CRF125F & CRF125FB Kit Includes:- OEM Quality 143cc Cylinder- 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 keep in mind that 2019+ EFI models will require a fuel controller like the aRacer MiniX that we sell or an ECU flash from CJR in order to use this kit.

Show More Show Less