2011 KTM 690 Duke Specs, News, and Revew...

2011 KTM 690 Duke... Back then, KTM revived the pure, unadulterated single-cylinder motorcycle in the form of the "original" Duke. Judging by the latest KTM 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 modern series production single-cylinder of our times and a precision chassis with a wealth of high-quality components turn every trip on the KTM 690 Duke into an incomparable and unforgettable riding experience.

2011 KTM 690 Duke - International Specifications
MSRP: 6.945,00 GBP

ENGINE

• Design Single-cylinder, 4-stroke, spark-ignition engine, liquid-cooled
• Displacement 654 cm³ (39.91 cu in)
• Bore 102 mm (4.02 in)
• Stroke 80 mm (3.15 in)
• Performance 48 kW (64 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
• Forks WP Suspension Up Side Down 4860 ROMA
• Shock absorber WP Suspension 4618 with Pro Lever linkage
• Suspension travel front 140 mm (5.51 in)
• Suspension travel rear 140 mm (5.51 in)
• 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 (12.6 in)
• Brake discs - diameter rear 240 mm (9.45 in)
• Chain 5/8 x 1/4" X Ring
• Steering head angle 63.5°
• Wheel base 1,472±15 mm (57.95±0.59 in)
• Ground clearance (unloaded) 155 mm (6.1 in)
• Seat height (unloaded) 865 mm (34.06 in)
• Total fuel tank capacity approx. 13.5 l (3.57 US gal)
• Unleaded premium fuel (95 RON)
• Weight without fuel approx. 148.5 kg (327.4 lb.)

2009 KTM 690 Duke R Specs, News, and Review

Uncompromising high-end motorcycling technology for riders who want it all: a racing precision chassis with the world's most powerful series single-cylinder, an upgraded engine with 690cc, a crankshaft with greater stroke, new mapping and numerous detail optimisations provide an impressive 51.5 kW/70 Hp of power and a maximum torque of 70 Nm.

Marchesini aluminium rims with an orange rim ring, a black anodised triple clamp, the orange R-tubular space frame and a whole range of additional black-coated components act as one refined part after another to underline the Duke 690 R's status as an exceptional motorcycle.

On the twisty Alpine roads on the outskirts of Nice, in France, the 690 Duke R immediately feels very light and easy to ride. And it’s not just very agile – it’s also very stable. With its stiff steel tube trellis frame, cast aluminium swingarm and uprated front fork, the Duke R stays quite planted even at its top speed of around 200km/h.

On bumpy roads with small patches of snow and ice, the Duke R doesn’t lose its composure even at higher speeds. The brakes, too, work very well – the single 320mm disc with Brembo radial-mount four-piston callipers at the front, and 240mm rear disc offer so much stopping power that you actually need some time to get used to these brakes.

The bike is comfortable to ride and the wide handlebars give you a lot of space to move around. If it weren’t for the lack of wind protection, you could actually use this bike for long distance trips.

For the Duke R, KTM have increased the displacement of their single-cylinder engine from 654cc to 690cc and power output has gone up from 65bhp to 70bhp. And yes, you can feel the difference – the new bike feels more responsive than the basic 690 Duke. There’s still not much power up to 2,000rpm but things are perfect once you cross that figure. The engine feels stronger and more rev-happy than you’d expect a single-cylinder engine to be, and it doesn’t vibrate much either. Honestly, you just can’t ask more of a machine with a 690cc single-cylinder engine!