| Attribute | Value |
| General |
| Production from | 2013 year |
| Make | Aprilia |
| Model | Aprilia RS4 50 |
| Category | Sport |
| Engine and transmission |
| Engine type | Single cylinder, two-stroke |
| Valves per cylinder | Add |
| Fuel system | Carburettor |
| Engine details | Add |
| Displacement | 49.9 cm³ |
| Power | Add |
| Max RPM | Add |
| Fuel consumption | Add |
| Cooling system | Liquid |
| Transmission type,final drive | Chain |
| Torque | Add |
| Bore | 39.9 mm |
| Stroke | 39.9 mm |
| Gearbox | 6-speed |
| Greenhouse gases | Add |
| Fuel control | Add |
| Emission details | Euro 2 |
| Driveline | Chain, 11/53. Primary drive: Gears, 21/78. |
| Ignition | Electronic with CDI capacity discharge |
| Clutch | Multiplate wet clutch |
| Lubrication system | Automatic mixer |
| Compression | 11.5:1 |
| Exhaust system | Add |
| Chassis |
| Front suspension | 41 mm upside down fork, wheel travel 110 mm |
| Rear suspension | Asymmetric swingarm with monoshock, wheel travel 130 mm |
| Front brakes | Single disc. radial 4 piston calliper |
| Rear brakes | Single disc |
| Diameter | 218 mm |
| Frame type | Add |
| Front tyre | 100/80-17 |
| Rear tyre | 130/70-17 |
| Seat | Add |
| Wheels | Light alloy with 6 split spokes, with sealing profile for tubeless tyres; front: 2.75 x 17in.; rear: 3.50 x 17in. |
| Front wheel travel | Add |
| Rear wheel travel | Add |
| Trail | Add |
| Rake (fork angle) | Add |
| Other |
| Battery capacity | Add |
| Starter | Electric |
| Color options | - racing black
- racing white
|
| Carrying capacity | Add |
| Light | Add |
| Instruments | Add |
| Electrical Voltage | Add |
| Dimensions |
| Wheelbase | 1,350 mm |
| Kerb weight | Add |
| Dry weight | Add |
| Power/weight ratio | Add |
| Overall height | 1,138 mm |
| Overall length | 1,953 mm |
| Overall width | 740 mm |
| Seat height | 820 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 | 3.5 l |
| Fuel capacity | 14.5 l |
| Oil capacity | Add |
| Width | Add |
| Height | Add |