| Attribute | Aprilia RS 125 1999 × | MZ RT 125 2001 × |
|---|---|---|
| General | ||
| Production from (year) | 1999 | 2001 |
| Make | Aprilia | MZ |
| Model | Aprilia RS 125 | MZ RT 125 |
| Category | Sport | Naked bike |
| Engine and transmission | ||
| Engine type | Single cylinder, two-stroke | Single cylinder, four-stroke |
| Valves per cylinder | - | 4 |
| Fuel system | - | Carburettor |
| Displacement (cm³) | 125 | 124 |
| Power (kw) | 10.9 | 10.9 |
| Fuel consumption (l/100km) | 0.52 | - |
| Cooling system | Liquid | - |
| Transmission type,final drive | Chain | Chain |
| Torque (Nm) | 15 | 11.7 |
| Bore (mm) | 54 | 60 |
| Stroke (mm) | 54.4 | 44 |
| Gearbox | 6-speed | 6-speed |
| Greenhouse gases | 12.1 CO2 g/km. (CO2 - Carbon dioxide emission) | - |
| Compression | 12.5:1 | - |
| Chassis | ||
| Front brakes | Single disc | Single disc |
| Rear brakes | Single disc | Single disc |
| Diameter (mm) | 220 | 220 |
| Front tyre | 110/70-ZR17 | 110/70-17 |
| Rear tyre | 150/60-ZR17 | 130/70-17 |
| Front wheel travel (mm) | 120 | 130 |
| Rear wheel travel (mm) | - | 130 |
| Other | ||
| Starter | Electric | - |
| Dimensions | ||
| Wheelbase (mm) | 1,345 | 1,355 |
| Kerb weight (kg) | 143 | 133 |
| Seat height (mm) | 780 | 770 |
| Front percentage of weight | 49.3 | - |
| Performance | ||
| Top speed (km/h) | 124 | 115 |
| Fuel capacity (l) | 13 | 13.5 |