Meet one of the most exclusive Aprilia RSV4s of all timeAprilia unveiled the RSV4 X – a ten units limited edition superbike to celebrate the birth of the first model, which was unveiled in 2009. With its 225 horsepower and 165 kg, it’s one of the lightest and most powerful sports bikes around. And here’s an interesting thing – Aprilia mounted a gearbox with neutral below first gear – the first production bike in the world of this kind. The system is called ANN (Aprilia No Neutral) and speeds up-shifting from first to second, while preventing any up-shifting errors, claims Aprilia. Another highlight – the Brembo GP4-MS calipers – these act on a pair of steel brake discs with T-Drive technology. Each of the ten Aprilia RSV4 X bikes, offered at a price of 39,900 Euro, can be reserved exclusively online from the second half of April, by accessing the website factoryworks.aprilia.com. The lucky buyers will have the chance to collect their bike from Aprilia Racing and enjoy an exclusive tour of the Noale racing department. RSV4 X is part of the Factory Works programme launched by Aprilia Racing. The RSV4 X is built around a 65 degrees V4 engine, and it’s derived from the RSV4 1100 Factory. The claimed dry weight sits at 165 kg due to the carbon fairing, and a lighter fuel tank. Also, there’s racing push-button panel for adjusting the main electronic controls. There are numerous billet aluminum details, such as the clutch lever, the front brake lever guard, the engine sump guards, the adjustable foot pegs and the upper steering plate, important details that make for a further weight saving. Aprilia RSV4 X also comes with Marchesini forged magnesium wheels and Pirelli slick tires. Watch our BMW S1000RR Review The 1100 cc V4 engine is prepared by Aprilia Racing – this involves hand-assembly and fine-tuning of all tolerances, just as it’s done for competition engine. The distribution system is also overhauled, with the adoption of new intake camshafts, new valve return springs, and caps, as well as brand-new convex bucket tappets that, similarly sized, allow for the use of shafts with more aggressive cam profiles, deriving from SBK. The Akrapovic exhaust system features titanium manifolds and a carbon tailpipe, while the air filter has been replaced with a Sprintfilter element: the air filter with the highest permeability available on the market (as well as being waterproof), the same unit used by Aprilia Racing in MotoGP. Electronic tuning is guaranteed by a specific ECU mapping, with dedicated track settings. These components ensure an increase in maximum power, from an already excellent 217 HP for the standard model to the impressive 225 HP of the RSV4 X.