A four-cylinder advanced "short stroke" engine powers the entire F4 range. Piston diameters of 79 mm are combined with a stroke of 50.9 mm. The peak rev limit has been raised to 14,000 RPM for the F4 RR. The assembly is completely by expert technicians and thus very precise, with the selection and measurement of all components to ensure perfect uniformity and maximum performance; A procedure that only MV Agusta could adopt. The engine has undergone a thorough update of the distribution system: the intake and exhaust valves now use a single spring instead of the two of the previous model. In this way the moving mass is reduced to the advantage of the speed reached by the motor and the speed and reactivity to engine rpm. The piston blanks are hard anodized treated to be even more durable and reliable. The connecting rods of the F4 RR are made of titanium, a solution more akin to a GP racer not a production machine, to offer improved strength and lightweight, matched to a rebalanced crankshaft. The oil circuit has been redesigned, inside and outside the engine crankcase with the aim of ensuring perfect main bearings and connecting rod lubrication increasing reliability, even under extreme working loads. The operating temperature of the engine is now lower, due to the greater radiator efficiency and new oil lines. The short-stroke inline four-cylinder is available in two power configurations: F4 and F4 R reaches 195 hp, while F4 RR is pushed to a record 200.8 hp.
50 mm diameter throttle bodies are employed with a revised variable length intake tract (TSS). The gearbox as on all the MV Agusta four-cylinder engines, is a six-speed unit, with the clutch featuring a mechanical slipper device. Four engine maps are available: three default and to customizable by the pilot.
2013 MV Agusta F4 R3 12
Price: $25381
Engine: liquid cooled inline four cylinder (4-stroke) with two overhead camshafts (DOHC), 16 radial valves
Power: 183 hp
0-100 MPH: 5.4 seconds
Top Speed: 194 mph
