Aprilia's small supersports bikes have been completely revised. Two models dedicated for young enthusiasts who want their first experience in the motorcycling world to be with a proper bike.
Aprilia RS4 marked a milestone in the evolution of the 125 cc motorcycle.
For the first time ever, the sportiest bike available for 16 year olds was a 4-stroke.
For the youngest riders of all, the Aprilia RS4 50 embodies all of Aprilia's technology in a genuine racing replica in just 50 cc.
Aprilia has always been the undisputed leader in the 50 and 125 cc supersports segment, pioneering innovative concepts and solutions and setting trends for its rivals to follow.
Aprilia RS4 50 and Aprilia RS4 125 take the concept of the sports bike for novice riders who want to enter the motorcycling world with a proper bike to new levels of technological sophistication.
The Aprilia RS4 125 is the natural successor and most advanced evolution to date of the Aprilia RS 125, the bike that has dominated the 125 cc sports class for years, which set the benchmark for the one-eighth litre sports segment and which is still today the most highly sought after machine among riders competing in the Sport Production category.
Aprilia RS4 125 introduces the highly advanced, all-new 4 stroke powerplant to the sports segment, while adopting styling and technical solutions inherited from the RSV4, the superbike that led Aprilia to victory in the WSBK 2010 championship.
The most significant characteristics of the Aprilia RS4 50 and Aprilia RS4 are:
RS4 50 - single cylinder, liquid cooled 50 cc 2-stroke engine
RS4 125 - single cylinder liquid cooled 125 cc 4-stroke with electronic injection, 4 valves and double overhead camshafts (DOHC)
characteristics in common:
extremely stiff aluminium perimeter frame derived from racing experience
41 mm upside down fork