Precision components / Motorcycle Crankshaft
Ruizheng Racing Minarelli Horizontal 50cc Crankshaft
Minarelli Horizontal 50cc 2-stroke scooter applications
- Standard Stroke
- 39.2 mm
- Crank Throw
- 19.6 mm
- Piston Pin Diameter
- 10 mm / 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
- Standard Stroke
- 39.2 mm
- Crank Throw
- 19.6 mm
- Connecting Rod Center-to-Center Length
- 80 mm
- Piston Pin Diameter
- 10 mm / 12 mm options
- Small End Bearing — 10 mm Option
- 10 × 14 × 13 mm
- Small End Bearing — 12 mm Option
- 12 × 17 × 15 mm
- Ignition Side Shaft Diameter
- 20 mm
- Transmission Side Shaft Diameter
- 20 mm
Application & supply
- Brand
- Ruizheng Racing
- Product Type
- Motorcycle Racing Crankshaft Assembly
- Engine Platform
- Minarelli Horizontal
- Engine Type
- 2-Stroke, Single Cylinder
- Application Displacement
- 50 cc / modified 70 cc application reference
- Cooling Versions
- Air-Cooled / Liquid-Cooled — confirm version
- MOQ
- 300 pcs
Specification source & technical context
Minarelli horizontal 50cc crankshaft assembly with supplier-listed 39.2 mm stroke, 80 mm rod and 10 mm or 12 mm piston-pin options. MOQ 300 pcs. Specify your engine, pin option and cooling version for a drawing-based quotation.
Supplier-provided applications
Applications & fitment
Minarelli Horizontal 50cc 2-stroke scooter applications
- Yamaha Aerox 50 2T
- Yamaha Jog 50
- Yamaha Jog R / Jog RR 50
- Yamaha Neo's 50 2T
- Yamaha Vino 50 2T
- MBK Nitro 50
- MBK Ovetto 50
- MBK Mach G 50
- Malaguti F10 / F12 Phantom 50
- Malaguti F15 Firefox 50
- Aprilia SR50
- Aprilia Rally 50 / Sonic 50
- Beta Ark 50 / Eikon 50
- Italjet Dragster 50
- Benelli 491 / K2 50
Please confirm your engine version and installation dimensions before ordering. Only matching horizontal 2-stroke engine versions are in scope. Model years, cooling version, pin and bearing interfaces require confirmation. Modified 70cc is an application reference, not a guaranteed performance or compatibility claim.
OEM / Customization
Your project requirements.
Custom stroke is available subject to technical review. Send the required stroke, engine version, drawing or sample, quantity and country. No custom range, material, tolerance or certification is promised.
Related products
Related components, not a claim of interchangeability.
Before you order
Frequently asked questions
What are the main supplied specifications?
Standard Stroke: 39.2 mm; Connecting Rod Center-to-Center Length: 80 mm; Piston Pin Diameter: 10 mm / 12 mm options. Values are supplier catalog references, not independent measurements.
Which engine versions are covered?
Supplier-provided applications: Yamaha Aerox 50 2T; Yamaha Jog 50; Yamaha Jog R / Jog RR 50; Yamaha Neo's 50 2T; Yamaha Vino 50 2T; MBK Nitro 50; MBK Ovetto 50; MBK Mach G 50; Malaguti F10 / F12 Phantom 50; Malaguti F15 Firefox 50; Aprilia SR50; Aprilia Rally 50 / Sonic 50; Beta Ark 50 / Eikon 50; Italjet Dragster 50; Benelli 491 / K2 50. Please confirm your engine version and installation dimensions before ordering. Only matching horizontal 2-stroke engine versions are in scope. Model years, cooling version, pin and bearing interfaces require confirmation. Modified 70cc is an application reference, not a guaranteed performance or compatibility claim.
Can I request customization?
Custom stroke is available subject to technical review. Send the required stroke, engine version, drawing or sample, quantity and country. No custom range, material, tolerance or certification is promised.
What is included in the supply?
Confirm the exact part variant, bearings, bolts and accessories in the quotation. Items pictured do not establish the final package contents or component brands.
What is the minimum order quantity?
MOQ is 300 pcs. Confirm the order unit and final assembly or rod supply configuration in the quotation.
What should I send for a quotation?
Provide your model, year, engine version, required dimensions or drawing, quantity, destination country and customization needs. Unspecified material, hardness, tolerances and certifications require explicit technical agreement.
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.