The transmission has also been designed to the meet most advanced criteria to offer the maximum performance possible. To underscore the racing soul of the V4 engine, it is mated to a cassette gearbox with a wet sump lubrication system (with oil in the crankcase). The wet clutch features a mechanical slipper system for optimised engine braking torque control and stability under hard braking. THE 65° V4 ENGINE in short: Engine capacity: 999.6 cc Architecture: 65° V4 Crankcase: monobloc with integrated cylinder liners Timing system: 4 valves per cylinder (Titanium and Nymonic) operated directly by a camshaft driven by a mixed chain/gear system, lateral timing chain, central gear train. Fuel system: electronic injection with 2 injectors per cylinder and integrated independent Ride by Wire system for each bank. Three mappings selectable from handlebar. Antivibration countershaft Maximum rpm: 14,000 Compression ratio: 13:1 Transmission: six speed cassette gearbox Clutch: Multiplate wet clutch with slipper system Electronic management: Magneti Marelli control unit managing ignition, injection and Ride by Wire system. CHASSIS Aprilia bikes have always been world famous for the superiority of these chassis. RSV4 R raises the bar even higher with a totally state of the art chassis architecture which, drawing from the expertise accumulated by Aprilia in years of racing and victories, tames the explosive power of the V4 engine to offer the rider absolute control over the bike. Quite simply, the RSV4 R is the best package available today for the rider demanding the utmost in performance in a bike that is as exciting as a track day machine as it is fun to ride on the open road. Perfectly centralised masses is just one of the strengths of the RSV4 R chassis. To achieve this result, every single aspect has been optimised down to the tiniest detail. As on a racing machine, the fuel tank is positioned so that the majority of the fuel sits under the saddle optimising bike balance and cancelling out handling differences between full and empty tank conditions.