| Aprilia's profilation of this bike |
| The RS4 125 – the first Aprilia sport bike in this engine class with a 4-stroke engine – and the RS4 50 allow young enthusiasts to take advantage of the maximum levels of technological innovation, chassis efficiency, active safety and component quality. They belong – not only from a styling point of view – to the same range of extremely high performance Italian motorcycles in which the Aprilia RSV4 stands out, the extraordinary bike which conquered two world titles in the 2010 Superbike season. |
| General information |
|---|
| Model | Aprilia RS4 125 |
| Year | 2012 |
| Category | Sport |
| Rating | 3.8 Check out the detailed rating of racing track capabilities, engine performance, accident risk, etc. Compare with any other bike. |
| Engine and transmission |
|---|
| Displacement | 124.8 ccm (7.62 cubic inches) |
| Engine type | Single cylinder, four-stroke |
| Power | 16.0 HP (11.7 kW)) |
| Compression | 12.5:1 |
| Bore x stroke | 58.0 x 47.0 mm (2.3 x 1.9 inches) |
| Valves per cylinder | 4 |
| Fuel system | Injection |
| Ignition | CDI |
| Lubrication system | Automatic mixing |
| Cooling system | Liquid |
| Gearbox | 6-speed |
| Transmission type | Chain (final drive) |
| Clutch | Multi-plate in oil bath. |
| Driveline | Primary drive: Gearbox: 63/19 (3.31). Final drive: Chain: 17/40 (2.35). |
| Chassis, suspension, brakes and wheels |
|---|
| Frame type | Aluminium perimeter frame |
| Front suspension | Upside down hydraulic fork, 40 mm. |
| Front wheel travel | 110 mm (4.3 inches) |
| Rear suspension | Swingarm. Hydraulic monoshock with adjustable spring preload. |
| Rear wheel travel | 130 mm (5.1 inches) |
| Front tire | 110/80-R17 |
| Rear tire | 130/70-R17 |
| Front brakes | Single disc |
| Diameter | 300 mm (11.8 inches) |
| Rear brakes | Single disc |
| Diameter | 220 mm (8.7 inches) |
| Wheels | Light alloy with 6 split spokes |
| Physical measures and capacities |
|---|
| Weight incl. oil, gas, etc | 120.0 kg (264.6 pounds) |
| Seat height | 820 mm (32.3 inches) If adjustable, lowest setting. |
| Overall height | 1138 mm (44.8 inches) |
| Overall length | 1955 mm (77.0 inches) |
| Overall width | 740 mm (29.1 inches) |
| Wheelbase | 1350 mm (53.1 inches) |
| Fuel capacity | 14.50 litres (3.83 US gallons) |
| Reserve fuel capacity | 3.50 litres (0.92 US gallons) |
| Other specifications |
|---|
| Color options | Red, black, white |
| Starter | Electric |
| Update specs | Report missing specs or required updates. |
| Further information |
|---|
| Insurance costs |
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| Parts finder |
Check out our overview of motorcycle webshops at Bikez.info. |
| Maintenance | Find parts, fluids. filters, maintenance tools and service manuals at Amazon.com. |
| Ask questions | Join the 12 Aprilia RS4 125 discussion group or the general Aprilia discussion group. |
| Related bikes | List related bikes for comparison of specs. |
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