| General |
| Year | 2012 - 13 | - |
| Colours | - | Red, White, Red/black/orange, Red/white/blue |
| Make Model | Aprilia RS4 125 | - |
| Dimensions |
| Ground Clearance (mm) | - | 135 mm |
| Ground Clearance (in.) | - | 5.3 inches |
| Seat Height | 820 mm / 32.3 in | 795 mm / 31.3 in. |
| Wheelbase | 1350 mm / 53.1 in | 1,070 mm / 42.1 in. |
| Height | 1138 mm / 44.6 in | 1,175 mm / 46.3 in. |
| Length | 1953 mm / 76.8 in | 1,920 mm / 75.6 in. |
| Width | 740 mm / 29.1 in | 675 mm / 26.6 in. |
| Weights & Capacities |
| Dry Weight | 122 kg / 269 lbs | 138 kg / 304.2 lbs |
| Fuel Capacity | 14.5 Liters / 3.8 gal | 10.00 litres / 2.64 gallons |
| Wet Weight | - | 250.0 kg / 551.2 lbs |
| Performance |
| Max Power | 11.7 kW / 16 hp @ 10500 rpm | - |
| Max Torque | 11 Nm / 1.12 kgf-m / 8.1 ft/lb @ 8500 rpm | 10.60 Nm (1.1 kgf-m or 7.8 ft.lbs) |
| Power-to-Weight Ratio | - | 0.0942 HP/kg |
| Engine |
| Bore x Stroke (in,) | - | 3.0 x 2.2 inches |
| Bore x Stroke (mm) | - | 75.0 x 56.5 mm |
| Displacement (cc) | - | 124.70 cc |
| Fuel Control | - | SOHC |
| Displacement (ci) | - | 7.61 cubic inches |
| Engine Type | - | Single cylinder, four-stroke |
| Displacement | 124.8 cc / 7.6 cu in | - |
| Engine Detail | Four stroke, single cylinder, DOHC, 4 valves | - |
| Fuel System | - | Injection |
| Bore x Stroke | 58 X 47 mm | - |
| Compression Ratio | 12.5 ± 0.5:1 | 11.0:1 |
| Cooling System | Liquid cooled | - |
| Emissions | Euro 3 | - |
| Engine Lubrication | - | Forced pressure and wet sump |
| Fuel Induction | Electronic injection | - |
| Fuel Reserve | - | 4.00 litres / 1.06 gallons |
| Ignition | Electronic with CDI capacity discharge | Computer-controlled digital transistorised with electronic advance? |
| Starter | Electric | Electric |
| Valve System | - | 4 |
| Drivetrain |
| Clutch | Multiple discs, in oil bath | Wet, multiplate, mechanical cable-actuated. |
| Final Drive | Chain | Chain |
| Gear Ratios | 1st 11/33 (0.33) / 2nd 15/30 (0.50) / 3rd 18/27 (0.67) / 4th 20/24 (0.83) / 5th 25/27 (0.92) / 6th 23/22 (1.05) | - |
| Gearbox | - | 6-speed |
| Primary Drive | - | O-ring sealed chain |
| Transmission / Drive | 6 Speed | - |
| Chassis |
| Frame Type | Aluminum perimeter frame | Diamond |
| Suspension - Front | ø41 mm Upside down fork | Telescopic |
| Suspension - Rear | Asymmetric swingarm with monoshock | Monshock |
| Wheel Travel - Front | 110 mm / 4.3 in | 120 mm / 4.7 in. |
| Wheel Travel - Rear | 130 mm / 5.1 in | 120 mm / 4.7 in. |
| Electronics |
| ECU | Magneti Marelli MIU G3, Ø32 mm | - |
| Wheels & Brakes |
| Brakes - Rear Diameter (mm) | - | 240 mm |
| Brakes - Front Diameter (in.) | - | 11.7 inches |
| Brakes - Front Diameter (mm) | - | 296 mm |
| Brakes - Rear Diameter (in.) | - | 9.4 inches |
| Brakes - Front | Single Ø300 mm disc, 4 piston caliper | Single disc |
| Brakes - Rear | Single Ø218 mm disc, 1 piston caliper | Single disc |
| Rims | - | U-section 6-spoke cast aluminium |
| Tyres - Front | 110/80 -17 | 120/70-ZR17 |
| Tyres - Rear | 130/70 -17 | 160/60-ZR17 |