Year after year Italian manufacturers of sportbikes are proving us that their engineers create legends. In 2011 Aprilia Motors submitted the worthy replacement for Aprilia RS 125 model, the new model line was Aprilia RS4. Small cubage sportbike full of high-techs innovations and improvements, tested on Supersport Racing Championships.
Aprilia RS4 125 fist sportbike in his class with four stroke engine. This great innovation is providing the highest class of adrenaline and emotions for young beginners in motosport. Small cubage RS4 is a deserving little brother of Superbike Racing 2010 season two-times champion Aprilia RSV4. Besides of that this bike native member of Aprilia RS 125 model line, the dominator in class of 125 cubage engines. This model line proved itself and earned respect of Sport Class Racers.
Innovations improved in new Aprilia RS4 125.
Unique 4-stroke, 125 cubage engine with electronic injection of liquid cooling. Aprilia Quick Shift (AQS) system let you switch gear with only one movement and forget about grip with releasing acceleration. Rigid sport style aluminum fork upside-down type and 300mm diameter front brake with radial support. LED rear stop signal comes from SBK model line series. Cowling borrowed from older brother RSV 4 model gives RS4 125 the outlook of sportbike from SBK family. Appearance of RS4 was maximal approximated to RSV 4 1000, but inside it is something new. Something you couldnâ€™t forget.
In conclusion I should recommend for young hotheads and small cubage sport bikes lovers to collect good notes and money, because this bike pay of any your payments and oblations. When do you think of Aprilia purchasing you should remember that with any Aprilia sportbike you purchase the history.
Engine technical characteristics:
Engine type: 125 cubage, 4-stroke, 1 cylinder engine with electronic fuel and liquid cooling injection.
Engine Capacity: 125 cc.
Cylinder diameter and piston stroke: 54x54.5 mm
Compression Ratio: 13:1
Engine Power: 15 h.p.
Torque: 11 Nm
Carburetor: Fuel injection
Clutch type: Multi-plate wet clutch with a mechanical system
Ignition system: Electronic ignition CDI
Transmission system: Constant mesh, 6-speed
Drive type: Chain