Home » 143cc Big Bore Kit - 2014-Current CRF125F/FB
143cc Big Bore Kit - 2014-Current CRF125F/FB - Factory Minibikes
143cc Big Bore Kit - 2014-Current CRF125F/FB - Factory Minibikes
143cc Big Bore Kit - 2014-Current CRF125F/FB - Factory Minibikes
143cc Big Bore Kit - 2014-Current CRF125F/FB - Factory Minibikes
143cc Big Bore Kit - 2014-Current CRF125F/FB - Factory Minibikes
143cc Big Bore Kit - 2014-Current CRF125F/FB - Factory Minibikes
143cc Big Bore Kit - 2014-Current CRF125F/FB - Factory Minibikes
143cc Big Bore Kit - 2014-Current CRF125F/FB - Factory Minibikes
143cc Big Bore Kit - 2014-Current CRF125F/FB - Factory Minibikes
143cc Big Bore Kit - 2014-Current CRF125F/FB - Factory Minibikes
143cc Big Bore Kit - 2014-Current CRF125F/FB - Factory Minibikes
143cc Big Bore Kit - 2014-Current CRF125F/FB - Factory Minibikes
143cc Big Bore Kit - 2014-Current CRF125F/FB - Factory Minibikes
143cc Big Bore Kit - 2014-Current CRF125F/FB - Factory Minibikes
Rad Speed & Design

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

In stock
$ 319.99 USD
Style

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.