Aprilia RSV4
Written by: Yogesh September 23rd, 2008Aprilia has won 31 world championship titles, 250 MotoGP wins and 8 Superbike victories in the last sixteen years. With this unique sporting heritage behind them, Aprilia is planning to return to the Superbike World Championship in 2009 with the brand new Aprilia RSV4.
Aprilia RSV4 has been conceived, designed and developed entirely by Aprilia Racing for competition use.
With four cylinders, 999 cc and top of the class power in the race-ready version, this revolutionary machine is packed with innovative design and manufacturing solutions of the sort we have come to expect from Aprilia. A V-four engine with total electronic management and an exceptionally light and compact chassis are just some of the features that make this bike unique in the world of motorcycling.
The revolutionary design of the Aprilia RSV4 comes directly from Europe’s biggest and most successful racing team.
The Aprilia RSV4 is powered by the most revolutionary and most powerful engine ever developed by Aprilia. This 65° V four unit is based on an architecture that is unique in the world of supersport motorcycles, and features refined engineering combined with prestigious materials and advanced electronic management solutions.
The new engine uses multi-mapping ride-by-wire technology, a solution that opens up new horizons in engine control, and offers virtually infinite opportunities for power delivery and traction control (present as standard on the racing version).
The choice of a narrow V layout has led to the development of an incredibly narrow engine. This in turn has permitted weight to be centralized and chassis performance dramatically improved (thanks to a short wheelbase and long swingarm). The narrow V-four configuration permits a longer stroke to be used, with clear benefits in terms of improved engine breathing. High engine speeds can therefore be reached without having to extend the width of the crankcase. This is fundamentally important to aerodynamics and maneuverability (two characteristics for which Aprilia motorcycles have always been universally acclaimed).
The monobloc cylinder block features integrated liners for maximum rigidity and consistent efficiency. The air intake trumpets are variable in length. Each bank of cylinders has a servomotor dedicated exclusively to the operation of their two throttle bodies. The aperture of the four butterfly valves, and therefore the volume of air inducted, can therefore be controlled independently. This solution opens up new horizons in electronic engine and power management, resulting in truly advanced integral traction control. A cassette type gearbox and a slipper clutch demonstrate the racing character of this engine.
The Aprilia RSV4 has been designed and developed with competition in mind, and naturally offers all the adjustments normally found on racing machines. In particular, this most powerful Aprilia ever made stands out for its complete range of chassis adjustments. The variable geometry frame not only allows you to change parameters like headstock angle (thanks to interchangeable steering bushings), but even lets you adjust swingarm and engine position. Racing technology has been used for all aspects of construction. The RSV4’s aluminum frame and swingarm are constructed from a clever mix of thick-walled parts and variable section sheet.
All components are naturally of the highest calibre. They include an Öhlins fork, rear monoshock and steering damper, Brembo monobloc brake calipers and forged aluminum wheels.
The styling of the Aprilia RSV4 has followed the same approach as the rest of the design. The RSV4’s racing character is clear from every component, and from the absence of solutions chosen only for appearances. As a result the overall design of the RSV4 and the advanced technology of its component parts merge into a uniquely harmonious whole that is superbly functional on the racetrack.
The fairing has been developed in the wind tunnel. Minimal in size, it in no way detracts from the stunning technology of the engine. The frame/engine system is fully visible and bulges like muscles beyond the fairing. The triple headlight cluster makes the RSV4 instantly recognizable and unique from the very first glance. While the superbly lightweight tail slopes upwards to emphasize the dynamic nature of the Aprilia RSV4.
Aprilia RSV4 introduction video
Rossi dropped to fourth at the start and then surrendered another place to Lorenzo on the next lap, but he soon found his rhythm and made his way back past Casey Stoner, Lorenzo and Andrea Dovizioso into second behind Nicky Hayden by lap six. Passing Hayden was no mean feat and it took the seven-time world champion another eight laps to finally get by the American, at which point he quickly began to pull away. Hurricane Ike was not finished with Indianapolis however and on lap 16 of 28 it started to rain heavily once again, accompanied by strong gusts of wind which became very dangerous. The race was eventually red-flagged after 20 laps and, after a few minutes confusion as to whether there would be a restart, Rossi was confirmed as the first ever MotoGP winner at the Brickyard.
