China Factory Custom Jialing JH125 Spare Parts Crankshaft Forged Steel 48-58HRC ISO9001 Certified

Technical specifications

Customization guide

Adjustable parameters include journal diameter, crank throw angle, and gear tooth pitch to meet requirements for engine displacement, power output, or torque load.

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With its robust steel construction and customizable design, this crankshaft is ideal for motorcycle manufacturers seeking a reliable power conversion solution. Whether optimizing for lightweight performance or heavy-duty applications, the JH 125 crankshaft delivers precision and longevity.

Choose your model

Supplier's note

1. Technical Breakthroughs:

   • High-strength steel: With 20% higher tensile strength than standard alloys, enabling use in high-output engines.
   • Nitriding finish (Pro Model): Triple the corrosion resistance of industry benchmarks, ideal for marine or industrial environments.
   • Modular gear design: Adjustable tooth pitch accommodates both 2-stroke and 4-stroke engine requirements.

2. Optimal Version Selection:

   • Base Model: Suitable for standard 125cc engines with OEM specifications.
   • Advanced Model: Recommended for high-revving engines (e.g., racing bikes) needing enhanced RPM tolerance.
   • Pro Model: Best for heavy-duty applications (e.g., off-road or commercial vehicles) requiring extreme durability and full customization.

Example Use Case: With the Pro Model’s nitriding finish, you can ensure corrosion resistance in saltwater environments—critical for marine engines. Pair this with its 15,600 RPM capability to handle high-torque demands without failure.