MV Agusta presents at the 2011 EICMA the eagerly awaited F4 R and F4 RR.
Both models are powered by the engine known as ‘Corsa Corta’, an in-line 4-cylinder unit which has been clompletely re-designed for this project.
The new F4 redlines at 13,700 rpm, with a decreased piston linear velocity (from 24,9 m/s to 23 m/s) which makes it more reliable.
The F4 R comes with 195.
2 hp wheras the even more extreme RR will count on no less than 201, at 13000 rpm.
Cylinder heads use new ducts and bigger valves which – for the first time ever on a production bike – are made of titanium: this made it possible to lose weight even though the valves have larger diameters (going from 28,6 to 31,8 mm for the inlet and from 24,6 to 26 mm for the outlet).
The new exhaust system maintains the 4-2-1-4 scheme, but with bigger diameters too.
49mm throttle body, slipper clutch and two new mappings that can be selected through a command on the handlebar complete F4’s engine modifications.
The Brembo radial monobloc braking system mounted on the front is the symply the best one available on the market, coupled to a master cylinder with integrated reservoir specifically made for MV.
The 320 mm diameter floating double front discs use an ultra light flange which are 5 mm thick to reduce inertia forces and non suspended masses.
The rear brake system is made exclusively for MV with a stainless steel 220 mm diameter disc and 4 piston calliper.
Click the “Continue Reading” link below to find out more about these two outstanding machines.
View the full MV Agusta F4 R and RR at 2011 EICMA photo galleryThe MV F4 R uses Marzocchi upside down forks with 50 mm stanchions adjustable in spring preload as well as the hydraulic extension and compression, while at the rear Sachs shock absorber is equipped with a nitrogen reservoir (separated and integrated within the body) and is adjustable in extension, compression and spring preload.
Sheer power aside, the main difference between F4 R and F4 RR is that the latter is basically ‘race-ready’, sporting a multi-adjustable 43mm Öhlins fork on the front and a Öhlins TTX 36 monoshock on the rear as well as ultra light rims, foot-pegs and handlebars.
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