Comparison of Aprilia SR 50 R Factory Replica SBK and Derbi Atlantis 50 2T [S]ave
| Attribute |  Aprilia SR 50 R Factory Replica SBK × |  Derbi Atlantis 50 2T × |
|---|---|---|
| General | ||
| Production from (year) | 2011 | 2012 |
| Make | Aprilia | Derbi |
| Model | Aprilia SR 50 R Factory Replica SBK | Derbi Atlantis 50 2T |
| Category | Scooter | Scooter |
| Engine and transmission | ||
| Engine type | Single cylinder, two-stroke | Single cylinder, two-stroke |
| Fuel system | Injection. Electronic direct fuel injection. | Carburettor. 17.5 mm |
| Displacement (cm³) | 49 | 49.4 |
| Cooling system | Liquid | Air |
| Transmission type,final drive | Belt | Belt |
| Bore (mm) | 40 | - |
| Stroke (mm) | 39.3 | - |
| Gearbox | Automatic | Automatic |
| Ignition | Capacitor discharge ignition | Electronic C.D.I. |
| Clutch | Automatic centrifugal dry clutch | Automated |
| Lubrication system | Separate mixing with mechanical oil pump | Mechanical oil pump |
| Compression | 12.1:1 | 10.5:1 |
| Chassis | ||
| Front suspension | Hydraulic fork | Hydraulic fork. |
| Rear suspension | Engine unit acting as swingarm; frame linkages on two radial silent block mountings. | Monoshock. |
| Front brakes | Single disc | Single disc |
| Rear brakes | Single disc | Expanding brake (drum brake) |
| Diameter (mm) | 190 | 110 |
| Frame type | Split single cradle frame in high tensile strength steel tube | - |
| Front tyre | 130/60-13 | 120/70-12 |
| Rear tyre | 130/60-13 | 120/70-12 |
| Seat | - | Dual |
| Wheels | Five spoke, light alloy wheels front and rear: 3.50 x 13´ | 5-spoke |
| Front wheel travel (mm) | 90 | 65 |
| Rear wheel travel (mm) | 70 | 65 |
| Other | ||
| Starter | Electric | Electric |
| Color options |
|
|
| Electrical Voltage (V) | 12 | - |
| Dimensions | ||
| Wheelbase (mm) | 1,290 | 1,265 |
| Kerb weight (kg) | - | 95 |
| Dry weight (kg) | 199 | 86 |
| Overall height (mm) | 1,120 | 1,115 |
| Overall length (mm) | 1,860 | 1,810 |
| Seat height (mm) | 820 | 790 |
| Performance | ||
| Reserve fuel capacity (l) | 1.2 | - |
| Fuel capacity (l) | 7 | 7.1 |
| Oil capacity (l) | - | 1.5 |
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