| Attribute | Derbi Atlantis 50 4T 2012 × | Aprilia Sonic 50 2008 × |
|---|---|---|
| General | ||
| Production from (year) | 2012 | 2008 |
| Make | Derbi | Aprilia |
| Model | Derbi Atlantis 50 4T | Aprilia Sonic 50 |
| Category | Scooter | Scooter |
| Engine and transmission | ||
| Engine type | Single cylinder, four-stroke | Single cylinder, two-stroke |
| Fuel system | Carburettor. 18 mm | Carburettor. Dell’Orto PH BN 12 carburettor |
| Displacement (cm³) | 49.9 | 49.3 |
| Cooling system | Air | Air |
| Transmission type,final drive | Belt | Belt |
| Bore (mm) | 39 | 40 |
| Stroke (mm) | 41.8 | 39.2 |
| Gearbox | Automatic | Automatic |
| Driveline | CVT | - |
| Ignition | Electronic CDI | Electronic ignition |
| Clutch | Automatic | - |
| Lubrication system | System oil pump | Separate mixing with mechanical pump |
| Compression | 11.5:1 | 12.5:1 |
| Chassis | ||
| Front suspension | 25 mm hydraulic fork. | Hydraulic fork; Ø 27 mm stanchions |
| Rear suspension | Monoshock. | Engine acting as swingarm, attached to the frame by rising rate linkages on 2 radial and 2 axial vibration dampers. Rising rate monoshock; Ø 50 |
| Front brakes | Single disc | Single disc. caliper with two opposing Ø 32 mm pistons |
| Rear brakes | Expanding brake (drum brake) | Expanding brake (drum brake) |
| Diameter (mm) | 110 | 110 |
| Frame type | - | Split single cradle in high strength tubular steel |
| Front tyre | 120/70-12 | 100/90-10 |
| Rear tyre | 120/70-12 | 100/90-10 |
| Front wheel travel (mm) | 65 | 65 |
| Rear wheel travel (mm) | 65 | 70 |
| Other | ||
| Starter | Electric & kick | Electric & kick |
| Color options |
| - |
| Electrical Voltage (V) | 12 | - |
| Dimensions | ||
| Wheelbase (mm) | 1,265 | 1,175 |
| Dry weight (kg) | 93 | 73 |
| Overall height (mm) | 1,115 | 1,070 |
| Overall length (mm) | 1,810 | 1,680 |
| Overall width (mm) | 675 | 610 |
| Seat height (mm) | 795 | 770 |
| Performance | ||
| Reserve fuel capacity (l) | 1.3 | 2 |
| Fuel capacity (l) | 7.1 | 8 |
| Battery capacity (Ah) | 4 | - |