14 August. Friday 2026
Znen SUN4 50 - 2021 Specifications and Reviews
The 2021 Znen Sun4 50 is an entry-level scooter designed for new riders and urban commuters seeking affordable, reliable transportation. With its modest 2.3 hp single-cylinder engine and automatic transmission, it excels in stop-and-go city riding while maintaining excellent fuel efficiency. The scooter is best known for its budget-friendly price point and compliance with modern emissions standards.
2021
Engine and Transmission Specifications | |
| Emission details | Euro 4, EPA Approved, DOT Approved, California CARB Approved |
| Transmission type | Belt (final drive) |
| Gearbox | Automatic |
| Fuel system | Carburettor. Dell´Orto |
| Top speed | 45.0 km/h (28.0 mph) |
| Torque | 2.5 Nm (0.3 kgf-m or 1.8 ft.lbs) @ 6500 RPM |
| Power | 2.3 HP (1.7 kW) @ 6500 RPM |
| Engine type | Single cylinder, four-stroke |
| Capacity: | 49.6 ccm (3.03 cubic inches) |
| | |
| Category | Scooter |
| Year | 2021 |
| Model | Znen Sun4 50 |
Brakes, suspension, Frame and wheels | |
| Rear brakes | Expanding brake (drum brake) |
| Front brakes | Single disc |
| Rear tire | 3.50-10 |
| Front tire | 3.50-10 |
| Rear Suspension | Telescopic, Oil Damped |
| Front Suspension | Telescopic |
Physical measures and capacities | |
| Fuel capacity | 5.40 litres (1.43 US gallons) |
| Wheelbase | 1205 mm (47.4 inches) |
| Overall width | 665 mm (26.2 inches) |
| Overall length | 1685 mm (66.3 inches) |
| Overall height | 1090 mm (42.9 inches) |
| Power/weight ratio | 0.0300 HP/kg |
| Weight incl. oil, gas, etc | 80.0 kg (176.4 pounds) |
| Dry weight | 76.0 kg (167.6 pounds) |
Other specs | |
| Maintenance | Find parts, fluids, filters, maintenance tools and service items on eBay |
| Comments | Chinese scooter. Model id: ZN50QT-11G. |
| Factory warranty | 12 Months |
| Starter | Electric & kick |
| Color options | Red/white/black |
Performance Profile & Rider Fit
2.3 hp
Peak Power
28 mph
Top Speed
Best For
Track2%
City75%
Cornering20%
Daily Riding55%
Touring8%
Passenger10%
Rider Profile
| Best For | This is an entry-level moped-class scooter suited to complete beginners and those without a full motorcycle license. |
| Purpose | It is built for short, low-speed errands around town rather than any kind of spirited or long-distance riding. |
| Rider Fit | Its tiny size and very light weight make it easy to handle, park, and manage for riders of almost any size or strength. |
| Character | It behaves like a docile, unhurried commuter appliance with modest performance and simple, low-maintenance mechanicals. |
| Not Ideal For | It is not suitable for highway travel, passenger carrying, touring, or anyone seeking real acceleration or speed. |
Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.
Shop This Bike
Rider Reviews
Total comments: 1
MotorcycleDB Review
The 2021 Znen Sun4 50 motorcycle is a sleek and stylish option for those in the market for a reliable and efficient ride. With its 50cc engine, this bike is perfect for zipping around town or cruising along scenic roads. The modern design and comfortable seat make for an enjoyable riding experience, while the powerful brakes provide added safety on the road. Overall, the Znen Sun4 50 motorcycle is a great choice for anyone looking for an affordable and practical mode of transportation. In conclusion, the 2021 Znen Sun4 50 motorcycle is a great option for anyone in search of a reliable and stylish ride. With its powerful engine, modern design, and comfortable seat, this bike offers a smooth and enjoyable riding experience. Whether you're commuting to work or taking a leisurely ride on the weekend, the Znen Sun4 50 motorcycle is a practical and efficient choice for riders of all skill levels.Add a Comment
Related Motorcycle Specifications
More Znen Motorcycles
- Motorcycles in database: 45863
- Technical specifications: 1490298
- Images of motorcycles: 72681
- Videos: 339
- Manufacturers: 501
Please Login or Register if you would like to leave a comment.