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The CG125 cylinder

The CG125 cylinder is a core engine component, responsible for containing the piston, facilitating combustion, and determining the engine’s displacement and power output, essential for the CG125 motorcycle’s performance.

     Product Overview

    Specifically engineered for the CG125 motorcycle engine, this cylinder is typically made from high-quality cast iron or aluminum alloy (with wear-resistant liners for aluminum variants). It features a precision-bored combustion chamber area, piston ring grooves, and mounting flanges that align with the CG125’s crankcase and cylinder head. The cylinder’s design ensures optimal compression, efficient fuel combustion, and durability under the high temperatures and pressures of engine operation. It is a direct-fit component, compatible with OEM pistons, rings, and gaskets, making it suitable for both factory replacement and aftermarket engine builds or repairs.

     Key Advantages

    1. Precision Engineered Bore: The cylinder’s bore is machined to exact tolerances, ensuring a perfect seal with piston rings, maximizing compression and minimizing power loss.

    2. Durable Material Construction: Cast iron or alloyed aluminum with wear-resistant liners resists wear from piston movement and combustion, extending engine life.

    3. Optimal Cooling Design: Features cooling fins (for air-cooled CG125 models) that efficiently dissipate heat, preventing overheating and maintaining engine stability.

    4. Seamless Compatibility: Designed specifically for CG125, it integrates flawlessly with the crankcase, cylinder head, and other engine components, ensuring easy installation and reliable performance.

     Applications

    1. CG125 Engine Rebuilds: Essential for restoring engine performance when replacing worn or damaged cylinders during full engine overhauls.

    2. Routine Maintenance & Repairs: Used to fix issues like low compression, excessive oil consumption, or cylinder scoring in CG125 engines.

    3. Aftermarket Performance Upgrades: A base component for bore-up kits or displacement upgrades (e.g., to 150cc) for CG125-based engine modifications.

    4. OEM Replacement in Manufacturing: Utilized by motorcycle manufacturers or assemblers for new CG125 production or engine component replacements.

     Product Specification

    Specification Item

    Details

    Model Compatibility

    CG125 motorcycle engine

    Material

    Cast iron (standard); Aluminum alloy with cast-iron liner (performance variant)

    Bore Diameter

    56.5mm (standard CG125 displacement; varies for modified versions)

    Stroke Compatibility

    Matches CG125 crankshaft stroke (55.5mm)

    Cooling Type

    Air-cooled (integrated cooling fins for heat dissipation)

    Mounting Interface

    Matches CG125 crankcase and cylinder head bolt patterns

    Piston Compatibility

    Standard CG125 piston (diameter 56.5mm, with corresponding ring sets)

    Operating Temperature

    Up to 250°C (under normal engine operation)

    Service Life

    Up to 30,000-50,000 km (varies with maintenance and riding conditions)

    Certification

    Complies with motorcycle engine component quality standards

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