| Attribute | Aprilia RS 125 2002 × | Derbi GPR Racing 50 Race Replica × |
|---|---|---|
| General | ||
| Production from (year) | 2002 | 2008 |
| Make | Aprilia | Derbi |
| Model | Aprilia RS 125 | Derbi GPR Racing 50 Race Replica |
| Category | Sport | Sport |
| Engine and transmission | ||
| Engine type | Single cylinder, two-stroke | Single cylinder, two-stroke |
| Fuel system | Carburettor | Carburettor. Ø17,5 Carburettor |
| Displacement (cm³) | 124.8 | 49.9 |
| Cooling system | Liquid | Liquid |
| Transmission type,final drive | Chain | - |
| Bore (mm) | 54 | 39.9 |
| Stroke (mm) | 54.5 | 40 |
| Gearbox | 6-speed | 6-speed |
| Ignition | - | Electronic CDI |
| Clutch | - | Multi-disc |
| Lubrication system | - | Oil pump |
| Compression | 12.5:1 | 11.5:1 |
| Chassis | ||
| Front suspension | - | Ø40 mm upside-down fork. 110 mm travel |
| Rear suspension | - | Monoshock. |
| Front brakes | Single disc | Single disc |
| Rear brakes | Single disc | Single disc |
| Diameter (mm) | 220 | 180 |
| Front tyre | 110/70-17 | 100/80-17 |
| Rear tyre | 150/60-17 | 130/70-17 |
| Front wheel travel (mm) | 120 | 110 |
| Rear wheel travel (mm) | 120 | 110 |
| Other | ||
| Starter | - | Electric |
| Dimensions | ||
| Wheelbase (mm) | 1,345 | 1,311 |
| Dry weight (kg) | 114 | 116 |
| Overall height (mm) | 1,090 | 1,116 |
| Overall length (mm) | 1,960 | 1,961 |
| Overall width (mm) | 615 | 720 |
| Performance | ||
| Reserve fuel capacity (l) | 3 | - |
| Fuel capacity (l) | 14 | 13 |