Custom Engineering Options
- Custom stroke and connecting rod configuration review
- Crank pin and counterweight requirements
- Surface treatment discussion
- Logo, private-label and packaging requirements
- Drawing- and sample-based development
Honda CR250R Performance Crankshaft
This complete Honda CR250R performance crankshaft assembly is specified for a 249 cc liquid-cooled, single-cylinder 2-stroke engine. Confirm the motorcycle model, engine code and original crankshaft specification before ordering.
- Application
- Honda CR250R
- Intended B2B use
- Motocross, racing and performance-replacement B2B projects.
Confirmed Product Specifications
Values marked Project-confirmed require review against the final application, drawing or sample before production.
- Product
- Honda CR250R Performance CrankshaftConfirmed
- Application
- Honda CR250RConfirmed
- Engine
- 249 ccConfirmed
- Engine type
- Single-cylinder, 2-strokeConfirmed
- Cooling
- Liquid cooledConfirmed
- Bore
- 66.4 mmConfirmed
- Stroke
- 72.0 mmConfirmed
- Crank throw / radius
- 36 mmConfirmed
- Piston pin
- 18 mmConfirmed
- Small-end bearing
- 18 × 22 × 22.8 mmConfirmed
- Configuration
- Complete crankshaft assemblyConfirmed
- Usage
- Motocross, racing and performance replacementConfirmed
Buyer Confirmation Checklist
- Honda CR250R model and engine code
- Original crankshaft specification
- Required stroke, crank pin and connecting rod details
- Sample or drawing
- Target quantity and branding requirement
Manufacturing and Quality Control
Foshan Ruizheng Machinery Manufacturing Co., Ltd. reviews manufacturing and inspection requirements against the confirmed project specification.
Crankshaft quality-control informationHonda CR250R Performance Crankshaft FAQ
Answers are limited to the information available for this product reference and project review process.
What motorcycle or engine does this crankshaft fit?
This product reference is for the Honda CR250R with a 249 cc, liquid-cooled, single-cylinder 2-stroke engine. Please confirm the motorcycle model, engine code and original crankshaft specification before ordering.
What are the confirmed stroke and crank throw?
The confirmed stroke is 72.0 mm and the crank throw or radius is 36 mm.
What piston pin and small-end bearing sizes are specified?
The confirmed piston pin is 18 mm. The specified small-end bearing size is 18 × 22 × 22.8 mm.
Can you review a custom crankshaft requirement?
Custom requirements can be reviewed against the confirmed drawing, sample or original specification.
Can you manufacture according to an original sample?
An original sample can be used as a reference for project review. Please include it with the motorcycle and engine information when requesting a quotation.
What information is required for quotation?
Please provide the motorcycle model, engine code, original crankshaft specification, required configuration, sample or drawing, and target quantity.