| MODEL | ZNEN SUN4 50 2021 |
| Year | 2021 |
| Engine Type | Single cylinder, four-stroke |
| Displacement / Capacity | 49.6 cc / 3.03 cu in |
| Bore X Stroke | — |
| Compression Ratio | — |
| Cooling System | — |
| Max Power | 1.7 kW / 2.3 hp @ 6500 rpm |
| Max Torque | 2.5 Nm / 1.8 ft-lb @ 6500 rpm |
| Ignition | — |
| Induction | Carburettor. Dell´Orto |
| Start System | Electric & kick |
| TRANSMISSION SPECS | |
| Lubrication | — |
| Gear Box | Automatic |
| Clutch | — |
| Final Drive | Belt |
| CHASSIS SPECS | |
| Frame | — |
| Front Suspension | Telescopic |
| Rear Suspension | Telescopic, Oil Damped |
| Front Brakes | Single disc |
| Rear Brakes | Expanding brake (drum brake) |
| DIMENSION SPECS | |
| Overall Length | 1685 mm / 66.3 in |
| Overall Width | 665 mm / 26.2 in |
| Overall Height | 1090 mm / 42.9 in |
| Seat Height | — |
| Wheelbase | 1205 mm / 47.4 in |
| Ground Clearance | — |
| Dry Weight | 76 kg / 167.6 lb |
| Wet Weight | 80 kg / 176.4 lb |
| WHEEL SPECS | |
| Front Tyre | 3.50-10 |
| Rear Tyre | 3.50-10 |
| FUEL SYSTEM | |
| Fuel Capacity | 5.4 Litres / 1.43 US gal |
| Fuel Consumption | — |
| Top Speed | 45 km/h / 28 mph |
The 2021 Znen Sun4 50 is a model in the range with a 49.6 cc single cylinder, four-stroke. The listing gives a claimed output of 1.7 kW / 2.3 hp, automatic gearbox, belt final drive. Weight is listed as 76 kg.
