143cc Big-Bore Engine Kit for 2014–Current Honda CRF125F/FB

Description

143cc 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 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.

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