Attribute | ![]() Derbi Dirt Boy 50 2009 × | ![]() Rieju MX 50 Disk 2006 × |
---|---|---|
General | ||
Production from (year) | 2009 | 2006 |
Make | Derbi | Rieju |
Model | Derbi Dirt Boy 50 | Rieju MX 50 Disk |
Category | Minibike, cross | Minibike, cross |
Engine and transmission | ||
Engine type | Single cylinder, four-stroke | Single cylinder, two-stroke |
Fuel system | Carburettor. 14 mm | Carburettor. Dell´Orto SHA 14/12 |
Displacement (cm³) | 49.9 | 49 |
Cooling system | Air | Air |
Transmission type,final drive | - | Chain |
Bore (mm) | 39 | 39 |
Stroke (mm) | 41.8 | 41.8 |
Gearbox | 1-speed | Automatic |
Ignition | CDI | - |
Lubrication system | Oil pump | - |
Compression | 12.0:1 | - |
Chassis | ||
Front suspension | Hydraulic fork. | Telescopic fork |
Rear suspension | Monoshock. | Hydraulic monoshoch |
Front brakes | Single disc | Single disc |
Rear brakes | Expanding brake (drum brake) | Single disc |
Diameter (mm) | 90 | 145 |
Frame type | - | In steel tube with automatic welding |
Front tyre | 2.50-12 | - |
Rear tyre | 2.75-10 | - |
Front wheel travel (mm) | 120 | - |
Rear wheel travel (mm) | 140 | - |
Other | ||
Starter | Kick | Kick |
Color options |
| - |
Dimensions | ||
Wheelbase (mm) | 905 | 1,100 |
Dry weight (kg) | 47 | 46 |
Overall length (mm) | 1,290 | 1,596 |
Overall width (mm) | 519 | 685 |
Seat height (mm) | 610 | 740 |
Performance | ||
Fuel capacity (l) | 2.3 | - |
Oil capacity (l) | 0.6 | - |