Jun 4, 2013
© 2017, Roadracing World Publishing, Inc.
by David Swarts
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The MV Agusta F3 800.
MV Agusta’s new 2014-model F3 800 is based closely on its F3 675. The inline three-cylinder engine of the F3 800 shares the same bore as the F3 675, 79.0mm, but the F3 800 gets a stroke of 54.3mm, +8.4mm longer than the F3 675. The result is 798cc of displacement, 63.5 lbs.-ft. of peak torque at 10,600 rpm and 148 peak horsepower at 13,000 rpm, an increase of 20 horsepower over the F3 675.
And MV Agusta claims these engine output numbers for the F3 800 while keeping dry weight the same as the F3 675 – 381 pounds (173kg).
The weight of the F3 800 is the same largely because it shares most of its other components with the F3 675. The frame is the same tubular steel trellis and cast aluminum swingarm locator plates, and the swingarm is the same cast aluminum single-sided unit. The front forks are fully-adjustable 43mm units from Marzocchi, and the fully-adjustable shock is from Sachs, albeit with a piggyback nitrogen reservoir. The front brake discs measure 320mm (12.6 inches) and are grabbed by new, Brembo M4.34 monoblock calipers. The transmission is a cassette-style six-speed unit mated to a mechanical slipper clutch.
Like the 675, the F3 800 comes with an Eldor Engine Control Unit (ECU) that manages the Ride-by-Wire throttle, the Mikuni throttle bodies, the four engine response maps (three preset and one customizable), the eight-way-adjustable traction control system, the four Torque Control settings, and the Electronically Assisted Shift (EAS) system.
The F3 800 differs from the F3 675 in that it has new, higher-flow fuel-injectors, much taller final drive gearing (17/39 versus 16/43 on the 675), and Diablo Rosso Corsa sport radials (120/70-17 front and 180/55-17 rear) on its cast aluminum wheels.
MV Agusta did not announce a U.S.-specific manufacturer suggested retail price (MSRP) or availability date for the F3 800, and representatives of MV Agusta USA had no further information at post time.