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MV Agusta F4 1078 RR 312

MV Agusta Announces New, 190-horsepower F4 RR 312 And More Powerful Brutales

Nov 09, 2007

MV Agusta has revised its F4-1000 Superbike once again, resulting in the 2008 F4 RR 312, a hybrid of the homologation special F4-1000R 312 and the very-limited-edition F4 CC (Claudio Castiglioni). The F4 RR 312 comes with the liquid-cooled, DOHC, radial-valve, Inline Four, 1078cc engine from the CC model. Displacement is bumped from 998cc to 1078cc via a larger bore (from 76 to 79mm).

Stroke remains 55.0mm. The increase in displacement along with refinements to the cylinder head result in a claim of 190 horsepower at the crankshaft with an increase in peak torque of 91.4 lbs.-ft. at 8200 rpm instead of the previous mark of 84.7 lbs.-ft. at 10,000 rpm.

The F4 RR 312’s cassette-style, six-speed transmission gets taller first, second and third gears, but the big news is the addition of a ramp-and-ball-bearing-style slipper-clutch to complement the Engine Braking System (EBS) carried over from previous F4 models. The bike’s four exhaust tips also come with a new, “stubbier and more sharply angled” shape.

With more go power comes the need for more whoa power, and MV Agusta has addressed this need by upgrading the RR’s brakes with radial-mounted, racing-spec, four-piston/four-pad, monoblock Brembo calipers grabbing dual 320mm rotors. The suspension components are the same as on the F4-1000R 312, but the inverted, 50mm Marzocchi forks now come with carbon-nitride coating on the sliders, more travel (now 130mm) and revised “internal calibration” and the Sachs shock comes with a hydraulic spring preload adjuster and adjustments for high- and low-side compression damping.

The bike also inherits the Sachs steering damper from the pricey F4 CC. The hybrid tubular steel trellis/cast aluminum alloy frame, the cast aluminum alloy single-sided swingarm and the chassis geometry remain identical to the F4-1000R 312, but new color schemes and some other aesthetic details have been updated.

MV Agusta’s new Brutale 989R and 1078R offer more displacement and more power than their predecessors, the Brutale 910S and 910R, and their predecessor the Brutale 750. Full technical details were not available at posttime, but we know this much. The liquid-cooled, DOHC, radial-valved, Inline Four engine of the 989R gets the 79mm pistons from the F4 RR 312 and F4 CC, which together with the original stroke of 50.1 mm result in a displacement of 982cc.

MV Agusta F4 1078 RR 312

The compression ratio of the Brutale 989R is less than the 910 (to ensure EURO III emissions compliance and to soften the power delivery, according to MV Agusta), but it gets the 46mm throttle bodies from the 2006-model F4-1000R and has a claimed output of 141 horsepower at the crankshaft, up from 136 horsepower on the 910. Two teeth have been taken off the drive sprocket, resulting in taller final drive gearing and a higher theoretical top speed.

The Brutale 1078R gets the full 1078cc (79.0 x 55.0mm bore x stroke) big-bore engine from the new F4 RR 312, which is detuned to 154 crankshaft horsepower at 10,700 rpm and 86.2 lbs.-ft. of torque at 8100 rpm, increases of 15 horsepower and 15.5 lbs.-ft over the out put of the Brutale 910, respectively. Like, the 989R, the 1078R gets taller (two teeth were taken off the drive sprocket) final drive gearing.

The 1078R also gets the F4 RR 312’s new slipper-clutch, but the big Brutale gets its EBS system removed. Larger catalytic converters are said to keep the Brutale 1078R EURO III emissions compliant.

The two new Brutales both get the aesthetic changes (decals, color schemes and instrument panel graphics) and the same chassis upgrades. The three-way-adjustable, inverted 50mm Marzocchi forks come with more travel (up to 130mm/5.1 inches from 126mm/4.96 inches) and new internal “calibration,” and the three-way-adjustable Sachs shock also gets new “internal calibration.” Both bikes now come with radial-mounted Brembo four-piston calipers (monoblock units on the 1078R) and forged aluminum, five-spoke Brembo wheels (3.50 x 17.0 inches front and 6.00 x 17.0 inches rear) wearing 120/70-ZR17 and 190/55-ZR17 tires. Both bikes retain the MV Agusta trademark hybrid tubular steel trellis/cast aluminum alloy main frame and cast aluminum single-sided swingarm, and both Brutales have the same geometry (24.0° rake, 4.0 inches/101.5mm trail and 55.5 inches/1410mm wheelbase) and claimed dry weight 185 kg (408 lbs).

No pricing, delivery dates or photos were available for any of the new MV Agustas at post time.

MV Agusta F4 1078 RR 312
MV Agusta F4 1078 RR 312
MV Agusta F4 1078 RR 312
MV Agusta F4 1078 RR 312
MV Agusta F4 1078 RR 312

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