Motorcycle Racing Crank Pin & Pen Stroke Manufacturer

Ruizheng Racing manufactures motorcycle racing crank pins for performance engine builds, stroker crankshaft applications and custom racing projects. Our crank pins are available for multiple Honda, Yamaha and Suzuki motorcycle models. In Indonesia, crank pins for stroke modification are also commonly searched as pen stroke or pin stroke.

We support OEM/ODM production according to motorcycle model, crankshaft dimensions, stroke requirements and customer samples or drawings.

How to Choose a Motorcycle Crank Pin

Choosing the correct crank pin depends on the motorcycle model, crankshaft design, connecting rod dimensions and required stroke increase.

Before production, buyers should confirm:

• Motorcycle model and engine application
• Original crank pin dimensions
• Required stroke modification
• Connecting rod specification
• Racing or street application

For custom pen stroke projects, our engineering team can manufacture according to samples, drawings or confirmed dimensions.

FAQ

What is a motorcycle racing crank pin?

A racing crank pin connects the connecting rod to the crankshaft and can also be used as part of a stroker crankshaft setup. Different crank pin specifications may change crankshaft stroke and engine configuration.

What does pen stroke mean in Indonesia?

In the Indonesian motorcycle performance market, “pen stroke” is commonly used to describe a crank pin designed for crankshaft stroke modification.

Can Ruizheng Racing manufacture custom crank pins?

Yes. We support custom crank pins based on motorcycle model, dimensions, drawings, samples and required engine specifications.

What information is required before ordering?

Please provide the motorcycle model, crank pin dimensions, required quantity and modification requirements. Drawings or samples are recommended for custom projects.