HISTORY
| Aprilia has certainly made its mark since entering the
world of supermotard racing: 4 world titles since 2004 clearly
demonstrate the superiority of the Aprilia off-road concept. Now
Aprilia has taken its success story one step further with the Aprilia
Dorsoduro 750, the machine that sets completely new standards for the
road-going supermotard market.The Dorsoduro is Aprilia’s first 750 cc
supermotard, with a level of performance and equipment that places it
in direct competition with far bigger machines. Unlike its more
expensive rivals, however, the Dorsoduro gives you an unbeatable
combination of performance and equipment for its price. |
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CHASSIS
Aprilia
motorcycles have always been acclaimed for the excellent chassis
designs. The Dorsoduro 750 is no exception, thanks to a chassis that
makes it the best balanced and most effective bike of its type. The new
Dorsoduro is easy and intuitive to ride despite its blistering
performance. It is designed to be ridden at the limit under all
conditions, to perform extreme power slides, and to blast out of bends
under full power. The secret lies in an ultra-responsive chassis, whose
ergonomics suit riders of all statures and allow you to “take it to the
limit” and enjoy the thrills of a motorcycle built for pure
entertainment.
The frame incorporates all of Aprilia’s vast racing experience, and
makes full use of the latest mixed steel and aluminum designs derived
from the world of Supermotard World Championship racing. The top half
of the frame is a tubular steel trellis. This is secured to generous
aluminum side members by special high strength bolts. The resulting
structure is extremely rigid and lightweight, and provides the best
possible means of harnessing the exuberant power of the Aprilia V90
engine while still communicating a strong impression of lightness, high
technology and Italian style.
Continuous co-operation between engine and frame designers has led to
the perfection of high-tech, performance-oriented solutions and to
total integration between engine and frame. The intelligent design
solutions applied to Aprilia’s V twin engine have made it shorter than
ever, permitting the development of a rational and efficient frame and
a superbly agile and incredibly responsive motorcycle.
The lateral position and acute angle of the rear monoshock has freed up
the space needed to ensure optimum exhaust geometry without any
increase in the bike’s overall length, and without subjecting the
monoshock to thermal stress. The aluminum swingarm is robust enough to
withstand the asymmetric stresses generated by the lateral positioning
of the rear suspension. The swingarm has been specially developed to
satisfy the needs of a supermotard like the Dorsoduro 750, and combines
excellent torsional rigidity with the elasticity needed for precision
under acceleration and intuitive control under changing conditions.
ENGINE: APRILIA’S 90° V TWIN:
STATE-OF-THE-ART TECHNOLOGY
Aprilia’s 750 cc 90° V twin engine has been improved in a number of
ways, through extensive bench testing and trials on roads and circuits
all over the world. The engine development team at Noale has succeeded
in shaping the character of this unique engine to precisely match the
Dorsoduro’s extreme agility. Improvements have been made to various
areas of the 749.9 cc engine with its bore and stroke of 92 x 56.4 mm.
As a result the electronic and mechanical content of this V twin engine
sets new standards not only for engines of this size but for many far
larger units too.
The V twin engine that powers the Aprilia Dorsoduro incorporates the
latest, most advanced technology:
• 90° V twin layout
• Liquid cooling
• Tri-Map engine management and ride-by-wire throttle control
• Very over-square bore to stroke ratio
• Four valves per cylinder
• Double overhead cam valve timing
• Electronic fuel injection with two throttle bodies
• Stick-coils integrated in the spark plug caps
• Three way catalytic converter and Lambda probe
• Hydraulically operated wet clutch
The fuel injection system uses micro-spray injectors for optimum burn,
guaranteeing high power and extremely low emissions.
Aprilia was the first motorcycle manufacturer to believe in the
potential of ride-by-wire electronic throttle control. This
sophisticated technology, transferred to production directly from the
world of racing, lets riders get the very best performance out of their
motorcycles.
The electronic engine management on the Dorsoduro 750’s engine leads
the field in technology and performance. The Dorsoduro features a
second generation electronic throttle with Tri-Map selectable triple
mapping.
Three performance modes, Sport, Touring and Rain, can be selected on
the move from a switch on the handlebars (with the throttle closed for
safety reasons). The Dorsoduro changes its character radically,
depending on what mode you select. Sport mode gives you aggressive
instant power; Touring mode gives you a smoother action, better suited
to relaxed long distance riding; and Rain mode gives you ultimate
safety slippery surfaces.
The Tri-Map electronic throttle also means smoother, more consistent
power thanks to more accurate and precise throttle control based on
parameters including engine speed, gear selection, air flow, throttle
position and temperature. The V twin engine performs superbly at low
and medium revs and even at partial throttle openings, situations
typical of the sort of riding the Dorsoduro 750 supermotard is designed
for.
Whatever mapping you select, the engine is always ready to deliver the
best possible performance in terms of acceleration and rev range,
giving you an amazingly satisfying and entertaining ride.
The exhaust is made entirely from stainless steel. The collector pipes
meet in a single silencer under the seat before splitting again into
two tail pipes. The large volume of the exhaust system also aids engine
breathing and boosts efficiency.
A latest generation ECU manages all engine parameters, with a CAN
(Controlled Area Network) line carrying all signals to an instrument
cluster that incorporates a self-diagnostic terminal. Because the CAN
line uses only two wires to transfer all the necessary data, the
Dorsoduro’s electrical system is beautifully simple and a major factor
in the bike’s impressively light weight.
Thanks to its advanced electronic and mechanical technology, the
Aprilia V twin engine develops 92 HP at 8,750 rpm and a maximum torque
of 60.48 ft. lbs. at 4,500 rpm. These figures enable the Dorsoduro to
compete directly with motorcycles powered by far bigger engines.
SUSPENSION:
EFFECTIVE ON ALL SURFACES
Optimum suspension setup has always been one of the strong points of
the Aprilia design and testing team. The 43 mm upside down fork
features shell-cast bottom outers with radial calipers mountings, and
offers adjustments for spring preload and rebound damping. This
sophisticated fork offers a superb sliding action and a wheel travel of
160 mm in line with the latest trends in supermotard racing. Both yokes
are forged, and the top yoke is also anodized to match the Dorsoduro’s
high level of finish.
The laterally offset monoshock pivots directly on the swingarm in a
cantilever configuration, and is also adjustable in spring preload and
rebound damping. Rear wheel travel is 160 mm, again in keeping the
requirements of a top level supermotard, on which effective, controlled
long stroke suspension is a must.
BRAKES: RACING
TECHNOLOGY
The Aprilia Dorsoduro 750 is equipped with the best braking technology
currently available. The front brakes feature 4-piston radial calipers,
state-of-the-art for the motard market. The lightweight, 320 mm wave
discs ensure shorter than ever stopping distances. The bike’s
aggressive stopping power is emphasized by the mean look of the braking
system, in keeping with the Dorsoduro’s overall styling.
The rear brakes
incorporate another wave disc, 240 mm in diameter this time, plus a
single piston caliper. Both the front and rear brakes are fitted with
aeronautical type metal braided brake lines to eliminate the sponginess
associated with conventional rubber hoses and to deliver maximum
braking precision.
COMPONENTS
Supermotards
are always no-frills machines, and sometimes quite spartan. This,
however, does not mean having to do without top quality components and
attention to detail. Here too Aprilia stands apart from the competition
by adopting a level of equipment worthy of a true market leader:
- Matrix instrumentation. The mixed analog/digital instrument cluster
receives data over a CAN line and incorporates a memory that forms an
integral part of the diagnostics system. The ultra-compact instruments
feature a modern design and are extremely light in weight. All
functions can be accessed and controlled from the handlebars. The LED
backlighting is white in the analog area and red in the digital area,
and can be adjusted to three levels of brightness.
- Dual taper anodized aluminum handlebars exactly like those fitted to
Aprilia’s racing supermotards. This super-lightweight component is
specially designed for optimum dynamic control.
- Hydraulically operated clutch for a consistently precise action and
exceptional smoothness. The clutch is also self-adjusting and
completely maintenance free.