Honda CBF125 125cc Cylinder Barrel and Piston Kit
Aftermarket replacement cylinder barrel and piston assembly for Honda CBF125 125cc four-stroke motorcycles. Designed for top-end engine repair where the original cylinder bore or piston is worn or damaged. Compare the components shown in the product photographs with the parts removed from your motorcycle before ordering.
Motorcycle Fitment
- Honda CBF125 / CBF 125 (commonly 2009–2015 model years)
- Applicable engine family: Honda CBF125 124.7cc four-stroke, including JC40 versions where dimensions and mounting features match
Model-year coverage can vary by market and engine revision. Check the original cylinder casting, engine code, mounting points and piston dimensions before fitting. Do not assume compatibility with the later CB125F or other Honda 125cc models solely because the engine capacity is the same.
Technical Specifications and Size
- Engine capacity: 125cc nominal
- Standard cylinder bore specification: 52.4 mm
- Standard piston / gudgeon pin diameter specification: 13 mm
- Engine type: air-cooled, single-cylinder, four-stroke
- Product type: replacement engine cylinder barrel with piston components, as pictured
- Listed shipment weight: 2 kg (2,000 g)
- Overall barrel dimensions and packed length, width and height: not specified
Honda OEM Reference Numbers
Honda cylinder reference numbers associated with CBF125 variants include 12100-KTE-910, 12100-KWF-900 and 12100-KWF-960. These are identification and cross-reference numbers only; they do not indicate that this aftermarket item is manufactured by Honda or that every referenced cylinder is interchangeable.
Installation and Compatibility
Check cylinder bore size, piston pin diameter, piston crown and compression height, stud and dowel positions, cam-chain passage, cylinder-head and base-gasket profiles and your engine's original part number. Installation by a qualified motorcycle mechanic is recommended. Use correct torque settings and gasket procedures from the service manual. Only the components visible in the listing photographs are included; do not assume additional gaskets or fittings are supplied unless pictured.