Comparison of DB Motors Pirat Air 2010 and Derbi Dirt Boy 50 2009 [S]ave
| Attribute |  DB Motors Pirat Air 2010 × |  Derbi Dirt Boy 50 2009 × |
|---|---|---|
| General | ||
| Production from (year) | 2010 | 2009 |
| Make | DB Motors | Derbi |
| Model | DB Motors Pirat Air | Derbi Dirt Boy 50 |
| Category | Minibike, cross | Minibike, cross |
| Engine and transmission | ||
| Engine type | Single cylinder, two-stroke | Single cylinder, four-stroke |
| Fuel system | Carburettor. Dell’orto PHBG 19 | Carburettor. 14 mm |
| Displacement (cm³) | 49.8 | 49.9 |
| Power (kw) | 8 | - |
| Cooling system | Air | Air |
| Transmission type,final drive | Chain | - |
| Bore (mm) | 39 | 39 |
| Stroke (mm) | 41.7 | 41.8 |
| Gearbox | Automatic | 1-speed |
| Ignition | - | CDI |
| Clutch | Automatic centrifugal | - |
| Lubrication system | EURO unleaded Nc 623-02 R.O.N. 95. Oil and premium grade gasoline mixture at 2% | Oil pump |
| Compression | 14.5:1 | 12.0:1 |
| Exhaust system | Racing-type with aluminium muffler | - |
| Chassis | ||
| Front suspension | Magnum | Hydraulic fork. |
| Rear suspension | Special racing shochs | Monoshock. |
| Front brakes | Single disc. Hydr. master cylinder and calliper | Single disc |
| Rear brakes | Single disc. Hydr. master cylinder and caliper | Expanding brake (drum brake) |
| Diameter (mm) | 160 | 90 |
| Frame type | Single steel beam frame | - |
| Front tyre | 2.50-12 | 2.50-12 |
| Rear tyre | 2.75-10 | 2.75-10 |
| Front wheel travel (mm) | - | 120 |
| Rear wheel travel (mm) | - | 140 |
| Other | ||
| Starter | Kick | Kick |
| Color options |
|
|
| Dimensions | ||
| Wheelbase (mm) | 957 | 905 |
| Dry weight (kg) | 44 | 47 |
| Power/weight ratio | 0.1818 | - |
| Overall length (mm) | 1,400 | 1,290 |
| Overall width (mm) | 300 | 519 |
| Seat height (mm) | 690 | 610 |
| Performance | ||
| Fuel capacity (l) | 4.2 | 2.3 |
| Oil capacity (l) | - | 0.6 |
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