KTM AND DUCATI

  

The Streetfighter’s Superbike soul combines fighter attitude and naked sophistication to create pure adrenaline. With 155hp of Ducati muscle, this fighter’s gloves-off and ready for action.

ENGINE
The world-beating 1098 Testastretta Evoluzione needs little introduction. Debuting in 2007, it went on to form the basis of a motor that powered Ducati to Superstock and Superbike World titles that left the competition stunned. Now, its massive bore, short stroke and incredible torque powers Ducati’s most extreme naked and the results are equally as stunning. Producing a ballistic 85lb-ft (11.7kgm) of torque and 155hp (114kW), the Streetfighter’s awesome 1098 power house fears nothing of the naked sports competition. The L-Twin, Testastretta Evoluzione engine gives both the best power-to-weight and the best torque-to-weight ratios in its class.

The incredible valve performances of our engines are only possible because of Ducati's unique Desmodromic system, where valve closure is activated mechanically. At high rpm it would be almost impossible for the valve to follow the steep closure profile of the cam lobe if it were relying upon a normal valve spring. With the Desmo system, the valve is closed mechanically with the same accuracy as it is opened, enabling steep cam profiles and radical cam timings. This system is used on every single Ducati power unit including our world-beating Superbike and Desmosedici MotoGP engines.

The streetfighter's lightweight crankshaft assembly operates a highly ‘over-square’ bore and stroke with huge 104mm pistons powering through short 64.7mm strokes.

The Vacural® casting process used to make the Streetfighter crankcases ensures consistent and precise wall thickness and increased strength from absolute material purity while reducing weight an incredible 3kg (6.5lb) compared to those of the 1098 Superbike engine.

Attention to weight reduction is further underlined with both cam covers and clutch outer cover cast in manesium alloy.

The Streetfighter engine is fed by MotoGP-derived elliptical throttle bodies which are equivalent to a diameter of 63.9mm. Representing a 30% increase in air flow over conventional throttle bodies, the elliptical shape contributes considerable a power increase. The Ducati 1098 engine was the first in the range to introduce this MotoGP technology for street use.

The Streetfighter’s power house is protected by twin coolant radiators, carefully curved in pure naked style for optimum performance and stunning with visual effect. The upper radiator is assisted by lightweight, high flow electric fan assemblies while the lower sits in the front of the belly pan, which also houses a highly efficient oil heat exchanger.

The massive 2-1-2 exhaust system is made from weight-saving 1mm thick steel and flows from 58mm to 63.5mm diameter pipes. The system uses two lambda probes to ensure precise fuel mapping for optimum performance and an electronic valve in the mid-section to achieve a wide spread of power. The cannon-style, vertically stacked, brushed steel mufflers deliver the famous Ducati L-Twin sound synonymous with raw, Desmo power.　

CHASSIS
The single-sided swingarm is 35mm longer than the Superbike to ensure the Streetfighter’s acceleration need never be compromised. The longer, beautifully created aluminium swingarm follows the same dual construction detail as the Superbike models and is anodised finished in black

The Streetfighter uses Brembo’s powerful Monobloc calliper race technology. Machined from a single piece of alloy, the callipers achieve higher rigidity and resistance to distortion during extreme braking. The result not only delivers planet-stopping brake power, but also gives an enhanced and precise ‘feel’ at the brake lever. The twin Monobloc callipers each have four 34mm pistons that grip huge 330mm discs to achieve their spectacular performance. The weight of the discs has been kept to a minimum by using racing-style narrow braking surfaces.

The purpose-built trellis frame uses 25.6° of rake compared with the Superbike’s 24.5° to ensure a well-planted front-end.

Fully adjustable 43mm Showa forks feature a natural chrome slider finish and radial mounts for the brake callipers and are fully adjustable in spring preload as well as compression and rebound damping.

A fully adjustable Showa monoshock at the rear operates through a progressive linkage and is also fully adjustable in spring preload and damping, both in compression and rebound.

Finished in graphite grey, the 10-spoke wheels in lightweight aluminium keep the overall motorcycle weight down and maintain an all-important control on unsprung weight. This weight is made up of all the components between the suspension and the road and consists of wheels, tyres, brake discs and callipers etc, but when rotating at high speed, it is the wheels that store most of the kinetic energy and offer the most resistance when steering, accelerating or braking. Their weight saving, therefore, is a serious contribution to both the handling and the performance of the bike and the Streefighter pulls out all the stops to be the best. 　

EQUIPMENT
The Streetfighter’s instrumentation blends into the aggressive line of the headlight. Information additional to the default read-outs is managed from the left-hand handlebar-mounted switch gear, allowing the rider to scroll through and select from various menus. The display presents rpm and speed, with the former displayed across the screen in a progressive bar graph. Additionally, the instruments display lap times, DTC status and level selected (if activated on Streetfighter S) time, air temperature, coolant temperature, battery voltage, two trips and a trip that automatically starts as the fuel system goes onto reserve. Warning lights illuminate to signify neutral, turn signals, high beam, rev-limit, low oil pressure, fuel reserve, DTC intervention (if activated on Streetfighter S) and scheduled maintenance. The instrument display is also used as the control panels for the DDA and DTC systems as well as listing lap times recorded by using the high-beam flash button as a stopwatch.

The digital display is programmed with a stopwatch function that, when enabled, can be triggered by using the high-beam flash button and each recorded time stored in a memory. After your journey or track session, the times or lap times can be recalled from the memory and scrolled through by using the instrumentation buttons on the left-hand switchgear. The instrument display also doubles as a control panel for the activation of the Ducati Data Analyser (DDA) system, which is available as an accessory from Ducati Performance. The bike has been built ‘system-ready’ for the data acquisition kit, which consists of special DDA software and a memory key that slots into a plug under the seat. The same plug also doubles as the connection for a handy new battery charger available as an accessory from Ducati Performance.

The aggressive looking headlight is the ‘face’ of the Streetfighter and it leaves little doubt as to its character. While the main lighting source and multi-reflector design provides powerful illumination to cut through the night, its two evil eye strips of LED positioning lights give a striking and unmistakable identity to the bike.

Keeping design matters clean and stylish, the directional indicators remain unobtrusive with clear lenses and coloured bulbs, while the rear light is integral to the shape of the tailpiece, providing unobscured illumination while maintaining the smooth and elegant look to the high and sharp rear-end.

The handlebars are gripped by beautifully shaped clamps that flow sleekly into the bar-risers. Symmetrically mounted, remote brake and clutch reservoirs are small, low and compact and feed slim, radial master-cylinders by Brembo to complete the clean and uncluttered controls arrangement.

The switchgear presents minimalism at its best. The slim-line bodies house easy-to-use switches and buttons and feature a unique weapons-like ‘trigger catch’ that slides down to cover the starter button when activating the kill-switch

The perfectly formed passenger seat cover is one of the finer details contributing to the Streetfighter's high level of finish.