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2012 Aprilia RS4 50
 
Even if the Aprilia RS4 50 belongs in one of the lightest classes in Moto GP racing, you can’t deny that the bike has produced some pretty amazing results in its short period of time. When Aprilia decided to build the RS4 50, they did so while keeping in mind the recipe of a championship-winning bike. The livery and eye-catching form of the Aprilia RS4 50 echo the looks of the Factory version of the Aprilia RSV4 supersports, sharing more than just a family resemblance with the most hardcore street version bike dominating the world SBK championship. The design of the fairings and tank, the unique looks of the front end, with the headlights suspended over the gaping air intakes, and the spectacular tapered tail fairing are identical to their counterparts on the V4 1000 cc supersports model that set new standards in terms of style and technical content for the superbike segment. At the heart of the Aprilia RS4 50 is a single-cylinder 50 cc unit water cooled two-stroke with reed valve induction that comes mated to a six-speed transmission, allowing the rider to make full use of the performance of this class beating engine. This gives the bike the kind of championship-caliber performance that has defined Aprilia’s image as one of the best in the business. Find out more about the Aprilia RS4 50 after the jump. Full story
2011 Aprilia RS4
Aprilia has unveiled a completely revised RS4 at the EICMA Show in Italy. It will be offered in two versions: Aprilia RS4 50 and Aprilia RS4 125. The first version, the RS4 50, is powered by a single cylinder, liquid cooled 50 cc 2-stroke engine while the second version, the RS4 125, is powered by a single cylinder liquid cooled 125 cc 4-stroke with electronic injection, 4 valves, and double overhead camshafts (DOHC). The RS4 features a unique look at the front end with the headlights suspended over the gaping air intakes. It also uses the same spectacular tapered tail fairing as found on the 1000 cc supersports model. These models set new standards in terms of style and technical content for the superbike segment. The superbike comes with a multifunctional analogue/digital instrument panel with LCD display and 6-spoke design wheels. On Aprilia RS4, 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. A solution that is not just visually effective, but which also contributes significantly to the dynamics of the bike by helping to centralise masses. Press release after the jump. Full story | | |||||||||||||||
