| Attribute | Value |
| General |
| Production from | 2007 year |
| Make | Chang-Jiang |
| Model | Chang-Jiang BD 50QT-4A |
| Category | Scooter |
| Engine and transmission |
| Engine type | Single cylinder, four-stroke |
| Valves per cylinder | Add |
| Fuel system | Add |
| Engine details | Add |
| Displacement | 139 cm³ |
| Power | 2.4 kw |
| Max RPM | Add |
| Fuel consumption | 1.9 l/100km |
| Cooling system | Air |
| Transmission type,final drive | Add |
| Torque | Add |
| Bore | 39 mm |
| Stroke | 41.5 mm |
| Gearbox | Add |
| Greenhouse gases | 44.1 CO2 g/km. (CO2 - Carbon dioxide emission) |
| Fuel control | Add |
| Emission details | Add |
| Driveline | Add |
| Ignition | CDI |
| Clutch | Add |
| Lubrication system | Add |
| Compression | 10.5:1 |
| Exhaust system | Add |
| Chassis |
| Front suspension | Add |
| Rear suspension | Add |
| Front brakes | Add |
| Rear brakes | Add |
| Diameter | Add |
| Frame type | Add |
| Front tyre | 3.00-10 |
| Rear tyre | 3.00-10 |
| Seat | Add |
| Wheels | Add |
| Front wheel travel | Add |
| Rear wheel travel | Add |
| Trail | Add |
| Rake (fork angle) | Add |
| Other |
| Battery capacity | Add |
| Starter | Electric & kick |
| Color options | Add |
| Carrying capacity | Add |
| Light | Add |
| Instruments | Add |
| Electrical Voltage | Add |
| Dimensions |
| Wheelbase | 1,200 mm |
| Kerb weight | Add |
| Dry weight | 75 kg |
| Power/weight ratio | 0.032 |
| Overall height | 1,020 mm |
| Overall length | 1,655 mm |
| Overall width | 640 mm |
| Seat height | Add |
| Alternate seat height | Add |
| Ground clearance | Add |
| Front percentage of weight | Add |
| Rear percentage of weight | Add |
| Performance |
| Top speed | 45 km/h |
| Acceleration 0-100 km/h | Add |
| Length | Add |
| Reserve fuel capacity | Add |
| Fuel capacity | 4 l |
| Oil capacity | Add |
| Width | Add |
| Height | Add |