| Attribute | Chang-Jiang BD 50QT-4 × | Chang-Jiang BD 50QT-4A × |
|---|---|---|
| General | ||
| Production from (year) | 2007 | 2007 |
| Make | Chang-Jiang | Chang-Jiang |
| Model | Chang-Jiang BD 50QT-4 | Chang-Jiang BD 50QT-4A |
| Category | Scooter | Scooter |
| Engine and transmission | ||
| Engine type | Single cylinder, four-stroke | Single cylinder, four-stroke |
| Displacement (cm³) | 139 | 139 |
| Power (kw) | 2.4 | 2.4 |
| Fuel consumption (l/100km) | 1.9 | 1.9 |
| Cooling system | Air | Air |
| Bore (mm) | 39 | 39 |
| Stroke (mm) | 41.5 | 41.5 |
| Greenhouse gases | 44.1 CO2 g/km. (CO2 - Carbon dioxide emission) | 44.1 CO2 g/km. (CO2 - Carbon dioxide emission) |
| Ignition | CDI | CDI |
| Compression | 10.5:1 | 10.5:1 |
| Chassis | ||
| Front tyre | 3.00-10 | 3.00-10 |
| Rear tyre | 3.00-10 | 3.00-10 |
| Other | ||
| Starter | Electric & kick | Electric & kick |
| Dimensions | ||
| Wheelbase (mm) | 1,200 | 1,200 |
| Dry weight (kg) | 80 | 75 |
| Power/weight ratio | 0.03 | 0.032 |
| Overall height (mm) | 1,094 | 1,020 |
| Overall length (mm) | 1,686 | 1,655 |
| Overall width (mm) | 652 | 640 |
| Performance | ||
| Top speed (km/h) | 45 | 45 |
| Fuel capacity (l) | 4 | 4 |