Motorcycle Crank Pins & Pen Stroke

Ruizheng Racing supplies motorcycle crank pins and stroker pins for performance engine builds, custom crankshaft projects and wholesale enquiries. In Indonesia, crank pins used for stroke modification are also commonly referred to as pen stroke or pin stroke. Each project should be confirmed against the applicable engine and crankshaft requirements.

Custom Stroker Pin Projects

OEM/ODM and custom crank pin projects can be reviewed from confirmed dimensions, drawings or samples. Buyers can provide the motorcycle model or engine code, original crankshaft reference, required stroke modification, connecting rod requirements, quantity and destination country for technical review before quotation.

Pin Dimensions & Fitment Confirmation

Crank pin compatibility depends on the crankshaft design, connecting rod requirements, required stroke and applicable engine version. Confirm the crank pin dimensions and relevant engine information against an approved drawing, sample or technical reference. Specifications should not be assumed interchangeable between different motorcycle models or engine generations.

Motorcycle Crank Pin Applications

Confirmed product references include the Honda LEAD125 stroker crank pin, KR150 pen stroke crank pin, Suzuki Raider150 crank pin, Yamaha NMAX pin stroke, Yamaha MX King crank pin and Honda Beat crank pin. Confirm the precise engine version and project requirement before requesting a quote.

Related Crankshaft Components

For complete engine-component projects, review the related Motorcycle Racing Crankshaft and CNC & Forged Motorcycle Connecting Rod categories. Each component must be checked against the confirmed project requirements.

Request a Quote

Send your motorcycle model or engine code, crank pin dimensions, required stroke modification, available drawing or sample, quantity and destination country. Ruizheng Racing will review the confirmed requirements before preparing an OEM, custom or wholesale quotation.