Precision components / Crankshaft
Ruizheng Racing Piaggio 50cc 2 Stroke Polished Racing Crankshaft – 39.3mm Stroke
Piaggio Hi-PER2 50 cc 2-stroke scooter
- Standard stroke
- 39.3 mm
- Standard crank throw
- 19.65 mm
- Reference piston pin diameter
- 12 mm
View applications & fitment. Custom stroke available; specify your required dimensions.
At a glance
Key specifications
Supplier-provided references. Final custom configurations must be agreed. See the complete technical specifications below.
Engineering data
Technical specifications
Dimensions & geometry
- Reference cylinder bore
- 40 mmProject confirmation required
- Standard stroke
- 39.3 mmProject confirmation required
- Standard crank throw
- 19.65 mmProject confirmation required
- Reference connecting rod length
- 80 mmProject confirmation required
- Reference piston pin diameter
- 12 mmProject confirmation required
- Reference small-end bearing
- 12 × 17 × 14 mm; final inclusion by quotationProject confirmation required
Application & supply
- Product type
- Polished crankshaft assemblyProject confirmation required
- Engine platform
- Piaggio Hi-PER2 50 cc (supplier reference)Project confirmation required
- Reference engine type
- Single-cylinder, 2-strokeProject confirmation required
- Reference displacement
- 49.4 ccProject confirmation required
- Reference main bearing seat
- 20 mmProject confirmation required
- Crankshaft finish
- Polished surfaceProject confirmation required
- MOQ
- 300 pcs
Specification source & technical context
Polished racing crankshaft assembly for supplier-listed Piaggio Hi-PER2 50 cc two-stroke scooter applications. The supplied standard configuration references 39.3 mm stroke, 80 mm rod length and 12 mm piston pin. MOQ is 300 pcs. Confirm the complete ordered configuration, bearings and exact engine variant before supply.
Detailed product images
Supplier-provided work-surface close view. Photographed accessories and quantities do not establish the final supply configuration.
Supplier-provided pair of supplied reference assemblies. Photographed accessories and quantities do not establish the final supply configuration.
Supplier-provided opposite view of supplied reference pair. Photographed accessories and quantities do not establish the final supply configuration.
Supplier-provided applications
Applications & fitment
Piaggio Hi-PER2 50 cc 2-stroke scooter
- Piaggio Zip 50 2T
- Piaggio Zip SP 50 2T
- Piaggio NRG 50 / NRG Power
- Piaggio Typhoon 50
- Piaggio Liberty 50
- Piaggio Fly 50
- Gilera Runner 50
- Gilera Stalker 50
- Gilera DNA 50
- Aprilia SR50 / SR50R
- Aprilia SR Motard 50
- Vespa ET2 50
- Vespa LX50 / S50
- Vespa Primavera 50 / Sprint 50
- Derbi GP1 50
Please confirm your engine version and installation dimensions before ordering. The list is supplied for sourcing review; it does not establish interchangeability across engine generations.
OEM / Customization
Your project requirements.
Custom stroke is available. Supplier reference combinations (stroke / rod length / piston pin): 39.3 / 80 / 12 mm; 39.3 / 85 / 12 mm; 44 / 85 / 12 or 13 mm; 44 / 90 / 13 mm; 47 / 100 / 14 mm. Confirm one complete matched configuration and clearances before production; model names require engine-version review.
Related products
Related components, not a claim of interchangeability.
Before you order
Frequently asked questions
What is the minimum order quantity?
The stated MOQ is 300 pcs.
Which application is supplied for reference?
Piaggio Hi-PER2 50 cc 2-stroke scooter. The detailed application list comes from supplier material. Confirm the exact engine code and installation dimensions before ordering.
Are custom specifications available?
Custom stroke is available. Supplier reference combinations (stroke / rod length / piston pin): 39.3 / 80 / 12 mm; 39.3 / 85 / 12 mm; 44 / 85 / 12 or 13 mm; 44 / 90 / 13 mm; 47 / 100 / 14 mm. Confirm one complete matched configuration and clearances before production; model names require engine-version review.
What should I provide for a quotation?
Send the engine reference, selected dimensions, required quantity, destination market and drawing or sample when available. Final material, tolerances and supplied components are agreed in the quotation.
Start your specification review
Request a Quote
Tell us your required stroke, engine version and assembly requirements. MOQ: 300 pcs.
Request a QuoteThe RFQ requirements field includes a custom-stroke entry prompt. No unconfirmed stroke options are offered.