| Attribute | Derbi Atlantis City 50 4T 2008 × | Polini XP 4 Street 50 2010 × |
|---|---|---|
| General | ||
| Production from (year) | 2008 | 2010 |
| Make | Derbi | Polini |
| Model | Derbi Atlantis City 50 4T | Polini XP 4 Street 50 |
| Category | Scooter | Super motard |
| Engine and transmission | ||
| Engine type | Single cylinder, four-stroke | Single cylinder, four-stroke |
| Fuel system | Carburettor | Carburettor. Mikuni 16 |
| Displacement (cm³) | 49.9 | 49 |
| Cooling system | Air | Air |
| Transmission type,final drive | Belt | Chain |
| Bore (mm) | 39 | 39 |
| Stroke (mm) | 41.8 | 41 |
| Gearbox | Automatic | 4-speed |
| Ignition | - | Electronic |
| Clutch | Automated | Multidisc in oilbath |
| Lubrication system | System Oil pump | - |
| Compression | 11.5:1 | 9.5:1 |
| Chassis | ||
| Front suspension | 25 mm hydraulic fork. | Hydraulic fork 33mm |
| Rear suspension | Monoshock. | Adjustable monoshock |
| Front brakes | Single disc | Single disc |
| Rear brakes | Expanding brake (drum brake) | Single disc |
| Diameter (mm) | 110 | 150 |
| Front tyre | 130/60-13 | 3.50-10 |
| Rear tyre | 130/60-13 | 3.50-10 |
| Other | ||
| Starter | Electric & kick | Electric & kick |
| Color options |
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| Dimensions | ||
| Wheelbase (mm) | 1,265 | 1,150 |
| Dry weight (kg) | 93 | 68 |
| Seat height (mm) | 795 | 790 |
| Performance | ||
| Fuel capacity (l) | 7.1 | 3 |