The KTM 990 Super Duke is a

motorcycle A motorcycle (motorbike, bike, or trike (if three-wheeled)) is a two or three-wheeled motor vehicle steered by a handlebar. Motorcycle design varies greatly to suit a range of different purposes: long-distance travel, commuting, cruising ...

from the Austrian manufacturer

KTM KTM AG (Kraftfahrzeug Trunkenpolz Mattighofen, formerly KTM Sportmotorcycle AG) is an Austrian motorcycle, bicycle and sports car manufacturer owned by Pierer Mobility AG and the Indian manufacturer Bajaj Auto. It was formed in 1992 but traces ...

. The KTM 990 Super Duke was released in 2005 with updates in 2007 and 2012. In 2008 KTM released an R model which was available until 2011. For 2012 and 2013 KTM combined parts of the regular and R model sold the model as 990 Super Duke R. Production of the KTM 990 Super Duke R ended in 2013 and in 2014 the

KTM 1290 Super Duke R The KTM 1290 Super Duke R is a 1301 cc 75° V-twin engine, naked motorcycle from the Austrian manufacturer KTM. With the update in 2017 the motor is the most powerful LC8 engine ever built by KTM. Design The KTM 1290 Super Duke R is a nake ...

was introduced.

Design

The KTM 990 Super Duke has a

naked Nudity is the state of being in which a human is without clothing. The loss of body hair was one of the physical characteristics that marked the biological evolution of modern humans from their hominin ancestors. Adaptations related to h ...

body style and was designed by Gerald Kiska at the Kiska design studio in September 2003. It is built around a chromium-molybdenum

trellis frame A motorcycle frame is a motorcycle's core structure. It supports the engine, provides a location for the steering and rear suspension, and supports the rider and any passenger or luggage. Also attached to the frame are the fuel tank and battery. A ...

with powder-coated aluminum sub-frame and KTM LC8 engine used in several other KTM motorcycles. The engine in the KTM 990 Super Duke is a

DOHC An overhead camshaft (OHC) engine is a piston engine where the camshaft is located in the cylinder head above the combustion chamber. This contrasts with earlier overhead valve engines (OHV), where the camshaft is located below the combustion c ...

999.8cc 75°

V-twin A V-twin engine, also called a V2 engine, is a two-cylinder piston engine where the cylinders share a common crankshaft and are arranged in a V configuration. Although widely associated with motorcycles (installed either transversely or longit ...

with four valves per cylinder. The liquid cooled engine has an 11.5:1

compression ratio The compression ratio is the ratio between the volume of the cylinder and combustion chamber in an internal combustion engine at their maximum and minimum values. A fundamental specification for such engines, it is measured two ways: the stati ...

and uses

dry sump A dry-sump system is a method to manage the lubricating motor oil in four-stroke and large two-stroke piston driven internal combustion engines. The dry-sump system uses two or more oil pumps and a separate oil reservoir, as opposed to a conve ...

lubrication with two rotor pumps. It has a six speed gearbox and a wet

multi-plate clutch A clutch is a mechanical device that engages and disengages power transmission, especially from a drive shaft to a driven shaft. In the simplest application, clutches connect and disconnect two rotating shafts (drive shafts or line shafts). ...

, and chain

final drive A drivetrain (also frequently spelled as drive train or sometimes drive-train) is the group of components that deliver mechanical power from the prime mover to the driven components. In automotive engineering, the drivetrain is the components o ...

. Suspension is made by WP. In 1995, KTM Motorradholding GmbH acquired Swedish motorcycle maker '' Husaberg AB'' and took control of the Dutch company White Power Suspension). It consists out of a 48 mm upside down fork with 24°

rake Rake may refer to: * Rake (stock character), a man habituated to immoral conduct * Rake (theatre), the artificial slope of a theatre stage Science and technology * Rake receiver, a radio receiver * Rake (geology), the angle between a feature on a ...

at the front and a WP fully adjustable

shock absorber A shock absorber or damper is a mechanical or hydraulic device designed to absorb and damp shock impulses. It does this by converting the kinetic energy of the shock into another form of energy (typically heat) which is then dissipated. Most sh ...

with a 4”/103 mm trail at the rear. Brakes are twin 320 mm discs with 4 piston

calipers A caliper (British spelling also calliper, or in plurale tantum sense a pair of calipers) is a device used to measure the dimensions of an object. Many types of calipers permit reading out a measurement on a ruled scale, a dial, or a digital dis ...

at the front and a single 240 mm disc with a single piston caliper at the rear. They are made by

Brembo Brembo S.p.A. is an Italian manufacturer of automotive brake systems, especially for high-performance cars and motorcycles. Its head office is in Curno, Bergamo, Italy. History Brembo was established in Paladina, Italy on January 11, 1961 ...

. The bike has a 56.6”/1,438 mm wheelbase.

Facelifts and KTM 990 Super Duke R

2007 update

In 2007 the KTM 990 Super Duke was updated. The new model received a slight reduction of the steering head angle to 66.1° (previously 66.5°). Changes to the

electronic fuel injection Manifold injection is a mixture formation system for internal combustion engines with external mixture formation. It is commonly used in engines with spark ignition that use petrol as fuel, such as the Otto engine, and the Wankel engine. In a mani ...

system were made to improve throttle response, smooth out the power delivery, and meet

emissions standards Emission standards are the legal requirements governing air pollutants released into the atmosphere. Emission standards set quantitative limits on the permissible amount of specific air pollutants that may be released from specific sources over ...

. Another result of this were improved fuel economy and thus improved range. To further increase range the fuel tank's capacity was increased from 15 liters to 18.5 liters. The front brakes were updated from axial mounted brake calipers to radial mounted brake calipers. Along mechanical updates the 2007 model received an updated dashboard, headlight, headlight fairings, tank fairings and tank shape.

2007–2011 KTM 990 Super Duke R

In 2007 KTM also introduced the KTM 990 Super Duke R. This model was different from the regular KTM 990 Super Duke because of the following: * Seat was updated to a monoposto single seat * Engine redline was increased* * Engine power was increased from 120 hp (88 kW) at 9,000 rpm to 132 hp (97 kW) at 10,000 rpm* *

Exhaust header In automotive engineering, an exhaust manifold collects the exhaust gases from multiple cylinder (engine), cylinders into one pipe. The word ''manifold (engineering), manifold'' comes from the Old English word ''manigfeald'' (from the Anglo-Saxo ...

s made by

Akrapovič Akrapovič d.d. () is a Slovenian manufacturer of exhaust systems that began in 1990 in the motorcycle market, and expanded into automobile exhausts in 2010. A global exhaust supplier in motorcycle sport, Akrapovič exhausts are used on motorcycl ...

* * Steering head angle changed from 66.1° to 67.3° * Rear suspension travel was reduced by 10 mm to 150 mm *Uprated suspension with TiAlN coating * Linear

steering damper Originally designed in 1966 by Leonard R Jordan Jr the steering damper, or steering stabiliser is a damping device designed to inhibit an undesirable, uncontrolled movement or oscillation of a vehicle steering mechanism, a phenomenon known in moto ...

was added * Front and rear axle sliders * Spools on swing arm for rear stand * Orange powder coated frame and rear shock absorber spring * Black brake calipers, front stanchions, engine mounts and swing arm ''* Not applicable to 2007 KTM 990 Super Duke R, only on 2008–2011 models''

2012 update

In 2012 KTM combined parts of the regular KTM 990 Super Duke and the KTM 990 Super Duke R and sold the model as KTM 990 Super Duke R. Differences compared to the original KTM 990 Super Duke were: * Engine power was increased from 120 hp (88 kW) to 125 hp (92 kW) * Steering head angle changed from 66.1° to 67.3° * Rear suspension travel was reduced by 10 mm to 150 mm *Uprated suspension with TiAlN coating * Linear

was added * Front and rear axle sliders * Spools on swing arm for rear stand * Orange powder coated frame and rear shock absorber spring * Black brake calipers, front stanchions, engine mounts and swing arm * Square buttons instead of round buttons on dashboard

All available colours

2005–2006

Frame: Black with silver swing arm Fairings: Titanium, Black and Orange

2007–2011 (KTM 990 Super Duke)

Frame: Black or white frame with black swing arm (silver swing arm in 2007) Fairings: Orange, white, olive and glossy black

2007–2011 (KTM 990 Super Duke R)

Frame: Orange with black swing arm Fairings: Matte black (2007–2008) White (2009–2011)

2012–2013

Frame: Orange with black swing arm Fairings: White {{Cite web, url=https://media.ktm.com/assetbank-ktm/action/quickSearch?CSRF=067O8Dy3h5E8XvJ9yeXC&newSearch=true&quickSearch=true&, title=KTM Media Library {{! Search Results, website=media.ktm.com, language=en, access-date=2018-05-29

References

KTM motorcycles