| Attribute | Value |
| General |
| Production from | 2021 year |
| Make | Aprilia |
| Model | Aprilia SX 125 |
| Category | Super motard |
| Engine and transmission |
| Engine type | Single cylinder, four-stroke |
| Valves per cylinder | Add |
| Fuel system | Injection. Magneti Marelli M3G ø 32mm ECU |
| Engine details | Add |
| Displacement | 124.8 cm³ |
| Power | 10.9 kw |
| Max RPM | Add |
| Fuel consumption | Add |
| Cooling system | Liquid |
| Transmission type,final drive | Chain |
| Torque | 22.2 Nm |
| Bore | 58 mm |
| Stroke | 47 mm |
| Gearbox | 6-speed |
| Greenhouse gases | Add |
| Fuel control | Add |
| Emission details | Euro 4 |
| Driveline | Primary drive: Gearbox: 63/19 (3.31). Final drive: Chain: 17/40 (2.35). |
| Ignition | Electronic with CDI capacity discharge |
| Clutch | Multi-plate in oil bath. |
| Lubrication system | Wet sump |
| Compression | 12.5:1 |
| Exhaust system | Add |
| Chassis |
| Front suspension | Ø40 mm USD fork. |
| Rear suspension | Steel swingarm. Hydraulic monoshock absorber. |
| Front brakes | Single disc. Floating calliper. Front wheel only ABS. |
| Rear brakes | Single disc. Floating calliper |
| Diameter | 220 mm |
| Frame type | Steel perimeter |
| Front tyre | 110/70-R17 |
| Rear tyre | 150/60-R17 |
| Seat | Add |
| Wheels | Aluminium spoked wheel. |
| Front wheel travel | 260 mm |
| Rear wheel travel | 265 mm |
| Trail | Add |
| Rake (fork angle) | Add |
| Other |
| Battery capacity | Add |
| Starter | Electric |
| Color options | - red raceway
- silver speedway
|
| Carrying capacity | Add |
| Light | Add |
| Instruments | Digital dashboard |
| Electrical Voltage | Add |
| Dimensions |
| Wheelbase | 1,350 mm |
| Kerb weight | 120 kg |
| Dry weight | Add |
| Power/weight ratio | Add |
| Overall height | Add |
| Overall length | Add |
| Overall width | Add |
| Seat height | 880 mm |
| Alternate seat height | Add |
| Ground clearance | Add |
| Front percentage of weight | Add |
| Rear percentage of weight | Add |
| Performance |
| Top speed | Add |
| Acceleration 0-100 km/h | Add |
| Length | Add |
| Reserve fuel capacity | 3 l |
| Fuel capacity | 10 l |
| Oil capacity | Add |
| Width | Add |
| Height | Add |