Aprilia showcased its RS4 Replica in 125 and 50cc capacities at EICMA 2014.



RS4 50 and 125 Replica versions are a faithful reproduction of the Aprilia RSV4 SBK 2014, reigning Manufacturer World Champion bike,Marco Melandri -

The RS4 50 and 125 pay tribute to Aprilia's unparalleled collection of competition titles: 52 world titles and hundreds of championship races won, numbers which, in its brief history, have made Aprilia one of the most decorated brands in the world with 294 GP races won, leading to maximum confirmation of champions of the calibre of Biaggi, Rossi, Capirossi, Melandri, Stoner, Lorenzo.

Aprilia's successful history also traces its way through the small engine street bikes identified by the RS abbreviation, which have always been the most beloved entry level motorcycles by young people.

After the affirmation of the sporty RS bikes, especially in the 125 version with 2-stroke engine (more than 100,000 units produced and sold since 1993 in more than 30 countries all over the world), Aprilia has completely revamped the range, introducing the RS4 in 2011, a true sport bike inspired directly by the RSV4 project, the five-time World Superbike champion. Aprilia RS4 50 and RS4 125 are the heirs to this important lineage, becoming the sport bike most sought after by young people, who were immediately attracted to the performance of the engines, the safety features and the sport riding characteristics, even if they are used for daily mobility.

The Aprilia RS4 Replica versionsparticular headlight, it gives it a deeply aggressive look. The compact and sleek tail fairing is a true work of design and integrates the LED taillight. The passenger portion of the RS4 125 Replica saddle can be replaced with the removable single seater shell painted to match the body, a touch of sportiness inspired by racing bikes. The frame and engine emerge boldly as fundamental stylistic elements on these small Aprilia super sport bikes. On RS4 125 one additional detail underscores the level of sophistication of the bike: the exhaust, which is unmistakably inspired by competition machines, is completely integrated within the lower part of the fairing.

Aprilia is universally recognised as the manufacturer of ultra-fine chassis and the RS4 Replica versions are no exception. The frame is created based on the exceptional experience gained over the years in top level racing and it adopts die cast aluminium spars with crossed reinforcement ribs. A lightweight structure, but at the same time with torsional rigidity, capable of providing complete control even in track use. The is top level: the sturdy 41 mm upside down fork with black anodised sleeves has a stroke of 110 mm, while the rear monoshock is fixed directly to the asymmetrical swingarm.

Aprilia RS4 50 Replica and RS4 125 Replica share a braking system at the top of their class: the 300 mm steel disc at the front, gripped by a four piston radial calliper, works together with a 220 mm disc at the rear with a single piston calliper. The 17" wheel rimswith six spokes are shod with 100/80 rubber up front and 130/70 at the rear.

The refined chassis house latest generation engines; the single cylinder 50 cc unit developed by Aprilia for RS4 50 Replica is a water cooled two-stroke with reed valve induction, separate lubrication and mixing and a six speed gearbox.
The Aprilia RS4 125 Replica is powered by a 125 cc 4 stroke, water cooled, single cylinder engine with four valves and electronic engine boasting a sophisticated double overhead camshaft (DOHC) valve timing system. This ensures not only the maximum power output permitted for the class, but also a smooth, linear delivery which is environmentally friendly, complying with the strictest emissions regulations.
In the catalogue of accessories dedicated to the Aprilia the innovative Aprilia Quick Shift system, a sophisticated technical solution that has been derived directly from its extraordinary big sister, the RSV4, which allows the rider to upshift without letting up off the throttle and without using the clutch, thereby making gear changes simpler and quicker.