| Attribute | Derbi Sonar 50 2T 2010 × | Aprilia SportCity One 50 Street 2011 × |
|---|---|---|
| General | ||
| Production from (year) | 2010 | 2011 |
| Make | Derbi | Aprilia |
| Model | Derbi Sonar 50 2T | Aprilia SportCity One 50 Street |
| Category | Scooter | Scooter |
| Engine and transmission | ||
| Engine type | Single cylinder, two-stroke | Single cylinder, two-stroke |
| Fuel system | Carburettor | Carburettor. Dell’Orto 17.5 mm |
| Displacement (cm³) | 49.4 | 49.2 |
| Power (kw) | 3.4 | 2.9 |
| Cooling system | Air | Air |
| Transmission type,final drive | Belt | Belt |
| Torque (Nm) | 4.7 | 4.4 |
| Bore (mm) | 40 | 40 |
| Stroke (mm) | 39.3 | 39.3 |
| Gearbox | Automatic | Automatic |
| Emission details | - | Euro 2 |
| Ignition | - | Electronic inductive discharge ignition with variable advance |
| Clutch | Automatic centrifugal | Automatic centrifugal dry clutch |
| Lubrication system | Mechanical oil pump | Separated mixer, with mechanical pump. |
| Compression | 10.9:1 | 10.3:1 |
| Chassis | ||
| Front suspension | Hydraulic fork. | Hydraulic fork |
| Rear suspension | Single shock absorber | Engine unit acting as swingarm. Single hydraulic shock absorber with adjustable spring preload. |
| Front brakes | Single disc | Single disc |
| Rear brakes | Expanding brake (drum brake) | Expanding brake (drum brake) |
| Diameter (mm) | 140 | 140 |
| Frame type | - | Single cradle frame in high strength steel tube. |
| Front tyre | 90/80-16 | 120/70-14 |
| Rear tyre | 110/80-14 | 120/70-14 |
| Wheels | - | Light alloy Front: 3,00 x 14” Rear: 3,50 x 14” |
| Front wheel travel (mm) | 76 | 85 |
| Rear wheel travel (mm) | 64 | 76 |
| Other | ||
| Starter | Electric & kick | Electric & kick |
| Color options |
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| Carrying capacity | - | Big enough for a full face helmet. |
| Dimensions | ||
| Wheelbase (mm) | 1,340 | 1,355 |
| Dry weight (kg) | 95 | - |
| Power/weight ratio | 0.0358 | - |
| Overall length (mm) | 1,960 | 1,947 |
| Overall width (mm) | 735 | 730 |
| Seat height (mm) | 795 | 775 |
| Performance | ||
| Reserve fuel capacity (l) | - | 1.5 |
| Fuel capacity (l) | 6 | 7 |