| Attribute | Piaggio Fly 50 2011 × | Derbi Atlantis City 50 4T 2008 × |
|---|---|---|
| General | ||
| Production from (year) | 2011 | 2008 |
| Make | Piaggio | Derbi |
| Model | Piaggio Fly 50 | Derbi Atlantis City 50 4T |
| Category | Scooter | Scooter |
| Engine and transmission | ||
| Engine type | Single cylinder, four-stroke | Single cylinder, four-stroke |
| Valves per cylinder | 2 | - |
| Fuel system | - | Carburettor |
| Engine details | Piaggio HI-PER4 engine | - |
| Displacement (cm³) | 49.9 | 49.9 |
| Power (kw) | 8.3 | - |
| Cooling system | Air | Air |
| Transmission type,final drive | Belt | Belt |
| Torque (Nm) | 3.5 | - |
| Bore (mm) | 39 | 39 |
| Stroke (mm) | 41.8 | 41.8 |
| Gearbox | Automatic | Automatic |
| Fuel control | Single Overhead Cams (SOHC) | - |
| Clutch | - | Automated |
| Lubrication system | - | System Oil pump |
| Compression | - | 11.5:1 |
| Exhaust system | Euro 2 | - |
| Chassis | ||
| Front suspension | Telescopic fork | 25 mm hydraulic fork. |
| Rear suspension | Hydraulic shock absorber | Monoshock. |
| Front brakes | Single disc | Single disc |
| Rear brakes | Expanding brake (drum brake) | Expanding brake (drum brake) |
| Diameter (mm) | 140 | 110 |
| Frame type | Tube type | - |
| Front tyre | 120/70-12 | 130/60-13 |
| Rear tyre | 120/70-12 | 130/60-13 |
| Other | ||
| Starter | Electric & kick | Electric & kick |
| Color options |
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|
| Carrying capacity | Glove compartment and space for a helmet under the seat. | - |
| Dimensions | ||
| Wheelbase (mm) | 1,331 | 1,265 |
| Kerb weight (kg) | 107 | - |
| Dry weight (kg) | 100 | 93 |
| Power/weight ratio | 0.083 | - |
| Seat height (mm) | 785 | 795 |
| Performance | ||
| Fuel capacity (l) | 7.1 | 7.1 |