Precision components / Crankshaft
Ruizheng Racing Yamaha NMAX 155 Aerox 155 NVX 155 Racing Crankshaft Assembly 58.7mm Stroke
Yamaha NMAX 155 / Aerox 155 / NVX 155 scooter
- Standard stroke
- 58.7 mm
- Standard crank throw
- 29.35 mm
- Reference piston pin diameter
- 14 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
- 58.0 mmProject confirmation required
- Standard stroke
- 58.7 mmProject confirmation required
- Standard crank throw
- 29.35 mmProject confirmation required
- Reference piston pin diameter
- 14 mmProject confirmation required
Application & supply
- Engine platform
- Yamaha Blue Core VVA 155 cc (supplier reference)Project confirmation required
- Engine type
- Single-cylinder, 4-stroke, SOHC, 4-valveProject confirmation required
- Cooling
- Liquid cooledProject confirmation required
- Reference engine displacement
- 155.09 ccProject confirmation required
- MOQ
- 300 pcs
Specification source & technical context
Racing crankshaft assembly supplied for Yamaha NMAX 155, Aerox 155 and NVX 155 scooter projects, using a supplier-stated 58.7 mm standard stroke. MOQ is 300 pcs. Engine generations and custom-stroke configurations require individual dimensional confirmation; the application list is a supplier reference rather than an all-version fitment guarantee.
Detailed product images
Supplier-provided side profile on work surface. Photographed accessories and quantities do not establish the final supply configuration.
Supplier-provided gear-side close view. Photographed accessories and quantities do not establish the final supply configuration.
Supplier-provided bearing and connecting rod close view. Photographed accessories and quantities do not establish the final supply configuration.
Supplier-provided applications
Applications & fitment
Yamaha NMAX 155 / Aerox 155 / NVX 155 scooter
- Yamaha Aerox 155 V1
- Yamaha Aerox 155 V2 / Connected
- Yamaha NVX 155 V1
- Yamaha NVX 155 V2
- Yamaha NMAX 155 V1
- Yamaha All New NMAX 155 V2
- Yamaha NMAX 155 Turbo / Neo (supplier candidate, version review required)
- Yamaha Aerox Alpha 155 (supplier candidate, version review required)
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 stroke / increase pairs: 58.7 mm / 0 mm; 61.7 mm / +3.0 mm; 64.8 mm / +6.1 mm; 65.7 mm / +7.0 mm; 66.7 mm / +8.0 mm; 67.1 mm / +8.4 mm; 68.7 mm / +10.0 mm. Confirm the selected configuration and engine version before production.
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?
Yamaha NMAX 155 / Aerox 155 / NVX 155 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 stroke / increase pairs: 58.7 mm / 0 mm; 61.7 mm / +3.0 mm; 64.8 mm / +6.1 mm; 65.7 mm / +7.0 mm; 66.7 mm / +8.0 mm; 67.1 mm / +8.4 mm; 68.7 mm / +10.0 mm. Confirm the selected configuration and engine version before production.
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.