Comparison of Piaggio Fly 50 4T and Piaggio NRG Power PJ PureJet [S]ave
| Attribute |  Piaggio Fly 50 4T × |  Piaggio NRG Power PJ PureJet × |
|---|---|---|
| General | ||
| Production from (year) | 2006 | 2006 |
| Make | Piaggio | Piaggio |
| Model | Piaggio Fly 50 4T | Piaggio NRG Power PJ PureJet |
| Category | Scooter | Scooter |
| Engine and transmission | ||
| Engine type | Single cylinder, four-stroke | Single cylinder, two-stroke |
| Valves per cylinder | 2 | - |
| Fuel system | Carburettor | Carburettor |
| Displacement (cm³) | 49.9 | 49.4 |
| Power (kw) | 2.7 | - |
| Cooling system | - | Liquid |
| Bore (mm) | 39 | 43 |
| Stroke (mm) | 41.8 | 38.2 |
| Compression | 10.7:1 | - |
| Chassis | ||
| Front brakes | Single disc | Single disc |
| Rear brakes | Expanding brake (drum brake) | Single disc |
| Diameter (mm) | 140 | 175 |
| Other | ||
| Starter | Electric & kick | Kick |
| Dimensions | ||
| Wheelbase (mm) | 1,330 | 1,270 |
| Dry weight (kg) | 100 | 99 |
| Power/weight ratio | 0.027 | - |
| Overall length (mm) | 1,880 | 1,790 |
| Seat height (mm) | 785 | 795 |
| Performance | ||
| Reserve fuel capacity (l) | 1.2 | 1.5 |
| Fuel capacity (l) | 7.2 | 6.5 |
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