Comparison of Aprilia SR 50 R Street 2009 and Piaggio NRG Power PJ PureJet [S]ave
| Attribute |  Aprilia SR 50 R Street 2009 × |  Piaggio NRG Power PJ PureJet × |
|---|---|---|
| General | ||
| Production from (year) | 2009 | 2006 |
| Make | Aprilia | Piaggio |
| Model | Aprilia SR 50 R Street | Piaggio NRG Power PJ PureJet |
| Category | Scooter | Scooter |
| Engine and transmission | ||
| Engine type | Single cylinder, two-stroke | Single cylinder, two-stroke |
| Fuel system | Carburettor. 17.5 mm throttle body | Carburettor |
| Displacement (cm³) | 49 | 49.4 |
| Cooling system | Liquid | Liquid |
| Transmission type,final drive | Belt | - |
| Bore (mm) | 40 | 43 |
| Stroke (mm) | 39.3 | 38.2 |
| Gearbox | Automatic | - |
| Ignition | CDI - capacitor discharge ignition | - |
| Lubrication system | Separate mixing with mechanical oil pump | - |
| Compression | 12.1:1 | - |
| Chassis | ||
| Front suspension | Hydraulic fork | - |
| Rear suspension | Engine unit acting as swingarm | - |
| Front brakes | Single disc | Single disc |
| Rear brakes | Single disc | Single disc |
| Diameter (mm) | 190 | 175 |
| Frame type | Split single cradle frame in high tensile strength steel tube | - |
| Front tyre | 130/60-13 | - |
| Rear tyre | 130/60-13 | - |
| Other | ||
| Starter | Electric | Kick |
| Color options |
| - |
| Dimensions | ||
| Wheelbase (mm) | 1,290 | 1,270 |
| Dry weight (kg) | - | 99 |
| Overall length (mm) | 1,860 | 1,790 |
| Seat height (mm) | 820 | 795 |
| Performance | ||
| Reserve fuel capacity (l) | 1.2 | 1.5 |
| Fuel capacity (l) | 7 | 6.5 |
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