| Attribute | Derbi Atlantis City 50 4T 2008 × | AJS Exactly 50 2010 × |
|---|---|---|
| General | ||
| Production from (year) | 2008 | 2010 |
| Make | Derbi | AJS |
| Model | Derbi Atlantis City 50 4T | AJS Exactly 50 |
| Category | Scooter | Scooter |
| Engine and transmission | ||
| Engine type | Single cylinder, four-stroke | Single cylinder, two-stroke |
| Fuel system | Carburettor | Carburettor |
| Displacement (cm³) | 49.9 | 40 |
| Power (kw) | - | 1.9 |
| Cooling system | Air | Air |
| Transmission type,final drive | Belt | - |
| Bore (mm) | 39 | 40 |
| Stroke (mm) | 41.8 | 39.2 |
| Gearbox | Automatic | Automatic |
| Ignition | - | Coil CDI |
| Clutch | Automated | Automatic |
| Lubrication system | System Oil pump | - |
| Compression | 11.5:1 | - |
| Chassis | ||
| Front suspension | 25 mm hydraulic fork. | Telescopic fork |
| Rear suspension | Monoshock. | Single shocks |
| Front brakes | Single disc | Single disc |
| Rear brakes | Expanding brake (drum brake) | Expanding brake (drum brake) |
| Diameter (mm) | 110 | - |
| Front tyre | 130/60-13 | 120/70-12 |
| Rear tyre | 130/60-13 | 130/70-12 |
| Other | ||
| Starter | Electric & kick | Electric & kick |
| Color options |
| - |
| Dimensions | ||
| Wheelbase (mm) | 1,265 | 1,290 |
| Dry weight (kg) | 93 | 87 |
| Power/weight ratio | - | 0.0218 |
| Seat height (mm) | 795 | 775 |
| Performance | ||
| Fuel capacity (l) | 7.1 | 4.7 |