Motorcycle Parts Start Shaft Assy

The motorcycle start shaft assy in motorcycle accessories is an important part of the engine starting system. It is mainly used to transmit the driver's starting action (such as pedal or electric start) to the engine crankshaft to start the engine.

High Strength
The engine start shaft assy is made of high-strength chromium-molybdenum alloy steel with a tensile strength of up to 980MPa. It is not easy to deform during high-frequency starting, and can effectively extend the product life by more than 30%. It is particularly suitable for mid-to-high-end motorcycle models with high starting frequency and load requirements.

High Hardness
During the production process, the engine start shaft assy adopts a double heat treatment process of carburizing quenching + high-frequency tempering, so that the surface hardness of the gear reaches 58-62HRC, and there is no breakage or cracking in the 100,000 cycle impact test, which is far higher than the standard of 50,000 times for conventional products.

Corrosion Resistance
Our motorcycle start shaft assy adopts zinc-nickel alloy electroplating layer. After continuous use for more than 6 months in a high humidity environment, the outer layer still maintains a metallic luster, no rust spots, and does not fall off. It is suitable for export to Southeast Asia, South America and other humid climate areas.

Our starting shafts for motorcycle engines are sourced from original parts manufacturers used by brand-name motorcycle factories.

They are of high quality and compatible with a wide range of single-cylinder 4-stroke engines with various displacements: 50cc, 100cc, 110cc, 125cc, 150cc, 200cc, 250cc, 300cc, etc.

These starting shafts are suitable for engines in different models of two- or three-wheel motorcycles.

We can accurately identify the required type based on the motorcycle and engine information provided by the customer, such as the manufacturer name, production year, and model.

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