Friday, June 3, 2011

MV Agusta F4 RR

Iconic Italian motorcycle brand MV Agusta has finally revealed the F4 RR in all its glory. Created using the most exotic materials, ultra-sophisticated suspension and a new 1000cc short-stroke engine, the new bike looks set to eat the competition alive. Under the gorgeous body lies a new 4-cylinder engine featuring a radial valve. Apart from the engine case castings, the arrangement of cylinders and a few other elements the 4 cylinder RR engine shares little with that of the previous F4. Without going into exhausting detail on how they did it, the F4 RR’s rpm limit has been raised to a stratospheric 13,700 rpm. To reach the claimed 201 hp at those levels – with a completely homologated engine including an exhaust system complete with the catalytic converter – extreme attention has been given to every detail.
On the chassis side, the frame and swingarm are common with those of the previous F4, but again we see some improvements here. To optimize performance and adapt the superbike to all race tracks and conditions, the F4 RR allows a virtually infinite combination of adjustments. Multi-adjustable suspension has been combined with the adjustable steering head angle and the height of the swing arm pivot and rear axle by means of calibrated inserts.
The front gets an Öhlins NIX upside-down fork with a 43 mm diameter inner tube and a titanium nitride coating to improve smoothness and precision. Also, the fork provides separate adjustments for the hydraulic damping (left leg compression, right leg extension), a solution that enables the accuracy of the hydraulic independence as varying the compression does not have an influence on the rebound.





The Öhlins Racing TTX 36 rear shock is externally adjustable in spring preload, compression, rebound and length allowing you to vary the ride height of the rear of the bike to match the different driving styles and different circuits. In addition, the MV Agusta F4 RR also offers the possibility of adjusting the height of the swing arm pivot point by means of calibrated inserts.
And those beautiful rims? They are lightweight forged aluminum wheels that minimize un-sprung weight and reduce inertia with the advantage in the increased reactivity of the bike. The manufacturer says the new wheels make for a weight saving of 1 kg compared to the standard F4 cast versions. Braking chores are handled by Brembo monobloc calipers, paired with Brembo radial master cylinders.

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