2014+ CRF125F 143cc Big Bore Kit

We worked with the best brands to create a true 143cc Big Bore Kit ! 

Kit Includes: 

- OEM Quality 143cc Cylinder

- Wiseco Forged Piston w/ hardened annodizing 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) 

*Tuning Required