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MV Agusta’s ‘budget’ F4 R

2011-10-14 12:05

BUDGET F4R: Despite losing out on some power, the F4R retains its siblings striking design.

In similar vein to MV Agusta’s recently unveiled “budget” Brutale 1090R, the Italian manufacturer has now taken the wraps off a less expensive version of its F4 RR.

The F4 R Corsa Corta loses 4kW compared to its more powerful sibling (143.5kW), along with the equivalent of R45 000 off the bike’s European price.

MV Agusta says the thermodynamics have been completely redesigned, starting from the new low-inertia crankshaft which makes it possible to use a super over-square bore and stroke ratio.

MV Agusta explains: “In this way, the MV F4 R is capable of reaching rpm worthy of a pure racing motorcycle”

SHORT STROKE ENGINE

“The engine capacity of 998cm3 has been obtained by using a bore of 79mm and a stroke of only 50.9mm. So it is possible to achieve an extremely high 13700rpm rev limit while at the same time lowering the linear velocity of the piston from 24.9m/s to 23m/s improving reliability.”

Instead of the F4 RR’s Ohlins suspension the Corsa Corta (which translates to “short-stroke engine”) is treated to adjustable 500mm forks as well as an adjustable Sachs shock which is equipped with a nitrogen reservoir.

Stopping power comes courtesy of Brembo monoblock radial callipers, while the 320mm diameter floating double front discs use an ultra-light flange. For the rear brake the company opted for a system made exclusively for MV with a stainless-steel, 220mm diameter disc and four-piston calliper.

In Italy the new bike sells for the equivalent of R203 000 and is available in two colour combinations: red/grey and white/medium grey.

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