| General |
| Comments | - | Sold in India. |
| Year | 2012 - 13 | - |
| Model | RS4 125 | - |
| Colours | - | Red |
| Make Model | Aprilia RS4 125 | - |
| Dimensions |
| Ground Clearance (mm) | - | 160 mm |
| Ground Clearance (in.) | - | 6.3 inches |
| Seat Height | 820 mm / 32.3 in | 800 mm / 31.5 in. |
| Wheelbase | 1350 mm / 53.1 in | 1,335 mm / 52.6 in. |
| Height | 1138 mm / 44.6 in | 1,975 mm / 77.8 in. |
| Length | 1953 mm / 76.8 in | 1,975 mm / 77.8 in. |
| Width | 740 mm / 29.1 in | 1,975 mm / 77.8 in. |
| Weights & Capacities |
| Oil Capacity (l) | - | 1.20 litres |
| Oil Capacity (Quarts) | - | 0.08 quarts |
| Dry Weight | 122 kg / 269 lbs | 126 kg / 277.8 lbs |
| Fuel Capacity | 14.5 Liters / 3.8 gal | 12.00 litres / 3.17 gallons |
| Coolant Capacity | 0.8 Liters | - |
| Oil Capacity | 1.2 Liters | - |
| Wet Weight | - | 137.0 kg / 302.0 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 | 14.00 Nm (1.4 kgf-m or 10.3 ft.lbs) @ 6000 Revolutions |
| Engine |
| Fuel Control | - | Single Overhead Cams (SOHC) |
| Bore x Stroke (mm) | - | 58.0 x 57.9 mm |
| Bore x Stroke (in,) | - | 2.3 x 2.3 inches |
| Engine Type | - | Single cylinder, four-stroke |
| Displacement (cc) | - | 153.00 cc |
| Displacement (ci) | - | 9.34 cubic inches |
| Displacement | 124.8 cc / 7.6 cu in | - |
| Engine Detail | Four stroke, single cylinder, DOHC, 4 valves | - |
| Fuel System | - | Carburettor |
| Bore x Stroke | 58 X 47 mm | - |
| Compression Ratio | 12.5 ± 0.5:1 | 9.5:1 |
| Cooling System | Liquid cooled | - |
| Emissions | Euro 3 | - |
| Engine Lubrication | - | Wet sump |
| Fuel Induction | Electronic injection | - |
| Fuel Reserve | 3.5 Liters / 0.9 gal | - |
| Ignition | Electronic with CDI capacity discharge | CDI |
| Lubrication System | Wet sump | - |
| Spark Plug | NGK CR9EB | - |
| Starter | Electric | Electric |
| Drivetrain |
| Clutch | Multiple discs, in oil bath | Constant mesh wet multiplate |
| 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 | - | 5-speed |
| Transmission / Drive | 6 Speed | - |
| Chassis |
| Frame Type | Aluminum perimeter frame | Diamond |
| Suspension - Front | ø41 mm Upside down fork | Telescopic Hydraulic |
| Suspension - Rear | Asymmetric swingarm with monoshock | Ajustable, Hydraulic Shock Absorber |
| Rake | 25° | 26.0° |
| Trail | 94 mm / 3.7 in | 98 mm / 3.9 in. |
| Wheel Travel - Front | 110 mm / 4.3 in | - |
| Wheel Travel - Rear | 130 mm / 5.1 in | - |
| Electronics |
| ECU | Magneti Marelli MIU G3, Ø32 mm | - |
| Electrical Systems |
| Battery Type | 12 V 6 Ah | - |
| Wheels & Brakes |
| Brakes - Rear Diameter (in.) | - | 5.1 inches |
| Brakes - Rear Diameter (mm) | - | 130 mm |
| Brakes - Front | Single Ø300 mm disc, 4 piston caliper | Single disc |
| Brakes - Rear | Single Ø218 mm disc, 1 piston caliper | Expanding brake (drum brake) |
| Tyres - Front | 110/80 -17 | 100/80-17 |
| Tyres - Rear | 130/70 -17 | 140/60-17 |
| Wheel size | Front 2.75 x 17 / Rear 3.50 x 17 | - |
| Wheels | Light alloy with 6 split spokes | - |