| Attribute | Value |
| General |
| Production from | 2012 year |
| Make | Aprilia |
| Model | Aprilia SX 125 |
| Category | Super motard |
| Engine and transmission |
| Engine type | Single cylinder, two-stroke |
| Valves per cylinder | Add |
| Fuel system | Carburettor. Dell’Orto VHST 28 |
| Engine details | Rotax 122 engine. Aluminium cylinder with Nikasil liner. |
| Displacement | 122 cm³ |
| Power | 15.7 kw |
| Max RPM | Add |
| Fuel consumption | Add |
| Cooling system | Liquid |
| Transmission type,final drive | Chain |
| Torque | 16 Nm |
| Bore | 54 mm |
| Stroke | 54.5 mm |
| Gearbox | 6-speed |
| Greenhouse gases | Add |
| Fuel control | Add |
| Emission details | Euro 3 |
| Driveline | Add |
| Ignition | Electronic CDI ignition. |
| Clutch | Multi-plate wet clutch. |
| Lubrication system | Separate mixing with variable displacement, volumetric pump. |
| Compression | 12.5:1 |
| Exhaust system | Add |
| Chassis |
| Front suspension | 40 mm upside down hydraulic fork. |
| Rear suspension | Steel swingarm. Hydraulic monoshock with piggy back cylinder. |
| Front brakes | Single disc |
| Rear brakes | Single disc |
| Diameter | 220 mm |
| Frame type | High strength steel frame with double trellis beam and double cradle. Detachable seat frame. |
| Front tyre | 110/70-17 |
| Rear tyre | 150/60-17 |
| Seat | Add |
| Wheels | Aluminium |
| Front wheel travel | 260 mm |
| Rear wheel travel | 270 mm |
| Trail | Add |
| Rake (fork angle) | Add |
| Other |
| Battery capacity | Add |
| Starter | Kick |
| Color options | |
| Carrying capacity | Add |
| Light | Add |
| Instruments | Add |
| Electrical Voltage | 12 V |
| Dimensions |
| Wheelbase | 1,480 mm |
| Kerb weight | Add |
| Dry weight | 115 kg |
| Power/weight ratio | 0.1365 |
| Overall height | Add |
| Overall length | 2,165 mm |
| Overall width | 850 mm |
| Seat height | 830 mm |
| Alternate seat height | Add |
| Ground clearance | Add |
| Front percentage of weight | Add |
| Rear percentage of weight | Add |
| Performance |
| Top speed | 115 km/h |
| Acceleration 0-100 km/h | Add |
| Length | Add |
| Reserve fuel capacity | 1.3 l |
| Fuel capacity | 10 l |
| Oil capacity | Add |
| Width | Add |
| Height | Add |