The Aprilia RS4 125 motorcycle was produced from 2012 to 2013. It has a four-stroke, single-cylinder, DOHC engine with a capacity of 124.8 cc. It is liquid-cooled, has a compression ratio of 12.5 +/- 0.5:1, and uses electronic injection and ignition with CDI capacity discharge. It conforms to Euro 3 emission standards and has an electric start. The motorcycle has a maximum power of 11.7 kW at 10500 rpm and a maximum torque of 11 Nm at 8500 rpm. It has a six-speed transmission and a chain final drive. The aluminum perimeter frame supports an upside-down fork front suspension and an asymmetric swingarm with monoshock rear suspension. The front and rear brakes are single-disc with a 4-piston caliper and 1 piston caliper, respectively. The wheels are 110/80 17 and 130/70 17, with a wheelbase of 1350 mm and a seat height of 820 mm. The motorcycle has a wet weight of 120 kg and a fuel capacity of 14.5 liters.
Technical specifications:
Make Model: Aprilia RS4 125
| Year | 2012 – 13 |
|---|---|
| Engine | Four stroke, single cylinder, DOHC, 4 valves |
| Capacity | 124.8 cc / 7.6 cu in |
| Bore x Stroke | 58 X 47 mm |
| Cooling System | Liquid cooled |
| Compression Ratio | 12.5 +/- 0.5:1 |
| Induction | Electronic injection |
| ECU | Magneti Marelli MIU G3, ~A32 mm |
| Ignition | Electronic with CDI capacity discharge |
| Emission Standard | Euro 3 |
| Starting | Electric |
| Max Power | 11.7 kW / 16 hp @ 10500 rpm |
| Max Torque | 11 Nm / 1.12 kgf-m / 8.1 ft/lb @ 8500 rpm |
| Clutch | Multiple discs, in oil bath |
| Transmission | 6 Speed |
| Final Drive | Chain |
| Gear Ratio | 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) |
| Frame | Aluminum perimeter frame |
| Front Suspension | ~A41 mm Upside down fork |
| Front Wheel Travel | 110 mm / 4.3 in |
| Rear Suspension | Asymmetric swingarm with monoshock |
| Rear Wheel Travel | 130 mm / 5.1 in |
| Front Brakes | Single ~A300 mm disc, 4 piston caliper |
| Rear Brakes | Single ~A218 mm disc, 1 piston caliper |
| Front Tyre | 110/80 17 |
| Rear Tyre | 130/70 17 |
| Dimensions | Length: 1953 mm / 76.8 in Width: 740 mm / 29.1 in Height: 1138 mm / 44.6 in |
| Wheelbase | 1350 mm / 53.1 in |
| Seat Height | 820 mm / 32.3 in |
| Wet Weight | 120 kg / 264.6 lbs |
| Fuel Capacity | 14.5 Liters / 3.8 gal |
