2013 KTM 690 DUKE: THE ESSENCE OF MOTORCYCLING

              Back then, KTM revived the pure, unadulterated single-cylinder motorcycle in the form of the "original" Duke. Judging by the latest 690 Duke that stands before us today, much has been gained: smoothness, room for a pillion passenger, long-distance ability. But what it has never lost is its intensive and elemental ride dynamics. The most cutting-edge series production single-cylinder of our times and a precision chassis with a wealth of outstanding components turn every trip on the 690 Duke into an incomparable and unforgettable riding experience.

HIGHLIGHTS:

1.STRAPPING, YET REFINED SINGLE-CYLINDER

ENGINE 

The new Duke is equipped with the latest version of the legendary LC4: A whole 690 cm³ of displacement, twin ignition featuring plug-selective mapping for the best and most effective combustion, plus extended service intervals of 10,000 km and even lower fuel consumption – never has it been as elegant, cultivated, sporty and effective to be powered by one cylinder. And never has the need for more cylinders been more questionable. 50 kW (68 PS) provide, thanks also to drive-by-wire, extremely powerful and free-revving thrust at all engine speeds, hence making light work of the equally lightweight 690 Duke. It has adopted such well-known standard production goodies such as active engine casing ventilation and the anti-hopping clutch that effectively prevents rear wheel chatter when down-shifting hard.

 

BALANCER SHAFT 

The finely balanced crank drive of the 690 single-cylinder converts terrific combustion pressure into unrivalled single-power - thanks to its balancer shaft, which eliminates vibration even better than ever without having any detrimental effect on the life of the super-single.

INJECTION / ENGINE MANAGEMENT / DRIVE-BY-WIRE

The electronic engine management system always gets optimum performance out of the ingenious LC4 engine. More advanced technology than ever is taken advantage of in 2012 for this purpose: Twin ignition with individual mapping for each spark plug ensures that the mixture is always burned effectively, irrespective of load and engine speed. And then genuine drive-by-wire, in other words electronically controlled throttle valve actuation without any mechanical linkage. So that the electronics always apply the power as perfectly and therefore smoothly as possible, above all on transition from throttle closed to throttle open. How good does that feel? Simply indescribable. So check it out!

2. POLISHED RIDE DYNAMICS 

CENTRALISATION OF MASSES

The Duke not only impresses with low weight and perfect chassis geometry; the centralisation of masses - for example, by positioning the brushed stainless steel pre-silencer under the engine - also contributes to its playful handling and razor-sharp precision.

ABS

The disconnectable dual-circuit ABS system with 9M+ modulator tuned in cooperation with Bosch offers total protection against over-braking, while maintaining the full effect and perfect feedback of a genuine sports brake thanks to very fine sensors. Weighing no more than one kilogramme, the ABS system therefore allows extremely sporty braking. And prevents nose-overs actively and effectively.

 

3. DYNAMIC CORNERING FUN 

FRAME AND SWINGARM

Lightweight components in a large, lightweight entirety: The 9 kg lightweight tubular space frame made from chrome-molybdenum steel and the 4 kg lightweight, high-quality, pin-jointed, die-cast swingarm impress with extreme levels of torsional stiffness, providing the less than 150 kg 690 Duke with excellent tracking stability.

 

SUSPENSION COMPONENTS

Well-equipped for every situation: The WP upside-down fork on the Duke with a 43 mm upright tube diameter and the pivot-arm articulated WP pressurised-gas monoshock excel with perfect tuning and an unbelievably broad spectrum of use for all demands, from relaxed cruising to racing around closed circuits.

NEW RIMS IN THE KTM DESIGN

New rims may not appear to be such an innovation at first sight nowadays. What new rims mean for a manufacturer perhaps becomes rather clearer measured against the present-day degree of perfection of practically all the parts of a motorbike: But major improvements don't just take a couple of minutes these days. KTM has nevertheless allowed the best technicians to play around with very clever computation software until an extremely lightweight, aesthetically elegant but still very stable and durable set of rims emerged from the casting die. Slightly lighter, but far less rotationally inert because the weight was saved predominantly at the rim ring. The result? Faster acceleration, shorter braking distance, quicker changes of direction – simply a faster motorbike. Cool, don't you think?

BRAKES

The Duke's extremely powerful and easily applied Brembo® brakes impress with outstanding controllability. At the front wheel, a radially-mounted, four-piston, fixed brake calliper bites onto a floating, 320 mm brake disc.

ABS

The disconnectable dual-circuit ABS system with 9M+ modulator tuned in cooperation with Bosch offers total protection against over-braking, while maintaining the full effect and perfect feedback of a genuine sports brake thanks to very fine sensors. Weighing no more than one kilogramme, the ABS system therefore allows extremely sporty braking. And prevents nose-overs actively and effectively.

ERGONOMICS

The new 690 Duke inherits many of the benefits of its predecessor: for example, the low weight of less than 150 kg, the first-class handling and the outstanding brakes. Particularly pleasant is the place of work on the two-piece seat: Comfortable while still being set up for all dynamic riding situations, because the gathered sitting position and freedom of movement behind the ideally angled, wide aluminium handlebar provide perfect support for controlling the bike.

 

 

4. LOW FUEL CONSUMPTION

 INJECTION / ENGINE MANAGEMENT / DRIVE-BY-WIRE

Thanks to the mechanical and electrical refinements, the new 690 Duke uses even less fuel than ever. Even though the last Duke had already won international consumption comparison test rides with ease. Duke riding will therefore be even more economical and environmentally friendly, while remaining unashamedly fleet-footed, sporty and dynamic.

 

5.NEW LICENCE CATEGORIES FOR EUROPE 

GREATER RIDING PLEASURE AND MORE SAFETY – WHICH MODELS ARE A1 & A2 CAPABLE.

New licence regulations came in to force in January 2013 and there have been some incorrect reports over which models fit into which of the new licence categories. The new rules include a maximum power to weight ratio for the A2 licence. Contrary to most of the overweight competitor models, KTM motorcycles are designed to be as dynamic and lightweight as possible to guarantee maximum riding pleasure and increased safety at the same time. This does mean they can exceed the power to weight ratio, however by fitting a difference performance map they can easily be made suitable for the new licence rules and you still benefit from advantage of riding a lightweight motorcycle.
Holders of an A1 licence can ride:
• 125 Duke
Holders of an A2 licence can ride:
• 200 Duke
• 390 Duke*
• 690 Duke*
• 690 Duke R*
• 690 SMC R*
• 690 Enduro R*
* With alternative performance map fitted.

 

TECHNICAL DETAILS 

ENGINE

Design	Single-cylinder, 4-stroke, spark-ignition engine, liquid-cooled
Displacement	690 cm³
Bore	102 mm
Stroke	84.5 mm
Performance	50 kW (67 hp)
Starting aid	Electric starter, automatic decompressor
Transmission	6-speed, claw shifted
Engine lubrication	Semi-dry-sump lubrication with 2 rotor pumps
Primary gear ratio	36:79
Secondary gear ratio	16:40
Cooling system	Liquid cooling system, continuous circulation of cooling liquid with water pump
Clutch	APTC™ Anti-hopping‑clutch / hydraulically operated
Ignition system	Contactless, controlled, fully electronic ignition system with digital ignition timing adjustment

 CHASSIS

Frame	Tubular space frame made from chrome molybdenum steel, powder-coated
Fork	WP Suspension Up Side Down
Shock absorber	WP Suspension with Pro‑Lever linkage
Suspension travel front	135 mm
Suspension travel rear	135 mm
Brake system front	Disc brake with radially mounted four-piston brake caliper; floating brake disc
Brake system rear	Disc brake with single-piston brake caliper, floating
Brake discs - diameter front	320 mm
Brake discs - diameter rear	240 mm
Chain	5/8 x 1/4” (520) X‑Ring
Steering head angle	63.5°
Wheel base	1,466±15 mm
Ground clearance (unloaded)	192 mm
Seat height (unloaded)	835 mm
Total fuel tank capacity approx.	14 l Unleaded premium fuel (95 RON)
Weight without fuel approx.	149.5 kg

 

Source: http://www.ktm.com