Comparison of Derbi Sonar 125 4T 2012 and Piaggio Liberty S 50 2007 [S]ave
| Attribute |  Derbi Sonar 125 4T 2012 × |  Piaggio Liberty S 50 2007 × |
|---|---|---|
| General | ||
| Production from (year) | 2012 | 2007 |
| Make | Derbi | Piaggio |
| Model | Derbi Sonar 125 4T | Piaggio Liberty S 50 |
| 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) | 124 | 49 |
| Power (kw) | 7.7 | - |
| Cooling system | Air | Air |
| Transmission type,final drive | Belt | Belt |
| Torque (Nm) | 9.6 | - |
| Bore (mm) | 57 | 40 |
| Stroke (mm) | 48.6 | 39.3 |
| Gearbox | Automatic | - |
| Fuel control | - | Single Overhead Cams (SOHC) |
| Emission details | Compartment underthe seat to hold a jet helmet. | - |
| Driveline | Automatic CVT | - |
| Clutch | Automatic centrifugal | - |
| Lubrication system | Mechanical oil pump | - |
| Compression | 10.6:1 | 9.9:1 |
| Chassis | ||
| Front suspension | Hydraulic fork | - |
| Rear suspension | Single shock absorber | - |
| Front brakes | Single disc | Expanding brake (drum brake) |
| Rear brakes | Expanding brake (drum brake) | Expanding brake (drum brake) |
| Diameter (mm) | 140 | 140 |
| Front tyre | 90/80-16 | 90/80-16 |
| Rear tyre | 110/80-14 | 110/80-14 |
| Other | ||
| Starter | Electric | Electric & kick |
| Color options |
| - |
| Dimensions | ||
| Wheelbase (mm) | 1,325 | 1,330 |
| Dry weight (kg) | 99 | 83 |
| Power/weight ratio | 0.0778 | - |
| Overall length (mm) | 1,930 | 1,960 |
| Overall width (mm) | 740 | 735 |
| Seat height (mm) | 805 | 795 |
| Performance | ||
| Reserve fuel capacity (l) | - | 1 |
| Fuel capacity (l) | 6 | 5 |
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