156FMI 125cc OHC Cylinder Head Assembly – Valves / Cam Type
Brand-new unbranded replacement cylinder-head assembly for compatible 125cc motorcycles using the 156FMI overhead-cam (OHC) engine family.
Product Details
- Engine family: 156FMI OHC 125cc
- Engine type: Single-cylinder, 4-stroke, air-cooled
- Valve train: Overhead cam (OHC)
- Nominal standard-bore family: approximately 56.5 mm on common 156FMI applications
- Condition: Brand new
- Type: Unbranded aftermarket replacement
Included Components
The uploaded product title describes a cylinder-head assembly with valves, camshaft and rocker components. However, the source description did not independently guarantee every valvetrain component. Please use the product photographs/package contents as the final authority for exactly what is included.
Verified / Researched Applications
| Make | Model / Engine | Fitment Basis |
|---|---|---|
| Engine family | 156FMI 125 OHC | Directly supported by complete/bare 156FMI OHC cylinder-head catalogues |
| Romet | Soft 125 | Direct bare-head 156FMI OHC catalogue application |
| Junak | 121 125 | Direct bare-head 156FMI OHC catalogue application |
| Zipp | VZ-1 125 / Manic RS 125 | Direct bare-head 156FMI OHC catalogue application |
| GB Motors | Cafe Bike 125 | Direct bare-head 156FMI OHC catalogue application |
Important Fitment Information
The original export described this as a Honda CG125 / 156FMI head, but that wording is too broad. Classic Honda CG125-style engines are typically OHV/pushrod, whereas this product is being positioned as an OHC/cam-chain 156FMI head based on the uploaded title and researched 156FMI OHC head family.
Do not order by “125cc”, “CG125” or “156FMI” alone. The 156FMI designation is used across both OHV/pushrod and OHC derivatives. This listing is for the OHC/cam-chain cylinder-head family, not the classic CG125-style OHV pushrod head.
Before ordering, compare the original head casting, cam-chain tunnel, head-stud pattern, combustion chamber, inlet/exhaust port positions, valve arrangement, camshaft/rocker layout and cylinder-head gasket profile.
Installation
Cylinder-head replacement requires correct cam timing, valve clearance, gasket installation and torque procedure. Professional installation is recommended if the correct engine-building procedure is not known.