Detail
KTM 690 DUKE
THE CULT MACHINE
Sixteen years ago, ambitious engineers presented the result of their deliberations on a completely new motorcycle for ultimate fun on bendy roads. It was neither a classic off-roader nor a standard roadhomologised sports bike; it was the Duke. A long-distance machine that is just as unconventional and unique in its third model generation as it was when first developed. The current 2010 Duke model is driven by a bullish four-stroke engine with 65 HP (48 kW), one of the most powerful road-approved single cylinders. The lightweight trellis frame, the fully adjustable WP chassis components and the powerful Brembo brake system make riding this easy-to-handle machine pure pleasure. The butted light alloy handlebar, the ultra-light multi-functional cockpit and the compact halogen twin headlights highlight the passion for technology and design which KTM traditionally uses to set itself aside from the competition.
Technical Specs
| Engine | |
|---|---|
| Engine Type | Single cylinder, 4-stroke |
| Displacement | 654 cc |
| Bore/Stroke | 102/80 mm |
| Power | 48 kW @ 7500 rpm |
| Torque | 67 Nm @ 5500 rpm |
| Compression Ratio | 11.8:1 |
| Starter/Battery | Electric starter/12V 8.6Ah |
| Transmission | 6 gears |
| Fuel System | Keihin EFI with EPT (Electr. Power Throttle) |
| Control | 4 V/OHC with roller rocker levers |
| Lubrication | Pressure lubrication with 2 Eaton pumps |
| Engine Oil | Motorex, SAE 10W-60 |
| Primary Drive | 36:79 |
| Final Drive | 16:40 |
| Cooling | Liquid cooling |
| Clutch | APTCTM slipper clutch, hydraulically operated |
| Engine Management/Ignition | Keihin EMS |
| Chassis | |
| Frame | Chromium-Molybdenum trellis frame, powder coated |
| Subframe | Aluminium |
| Handlebar | Aluminium, tapered, Ø 28/22 mm |
| Front Suspension | WP-USD Ø 48 mm |
| Rear Suspension | WP-Monoshock with Pro-Lever linkage |
| Suspension Travel Front/Rear | 140/140 mm |
| Front Brake | Brembo four piston, radially bolted caliper, brake disc Ø 320 mm |
| Rear Brake | Brembo single piston, floating caliper, brake disc Ø 240 mm |
| Wheels Front/Rear | Cast aluminium wheels 3.50 x 17"; 5.00 x 17" |
| Tyres Front/Rear | 120/70 R 17; 160/60 R 17 |
| Chain | X-Ring 5/8 x 1/4" |
| Silencer | Stainless steel underfloor silencer with regulated catalytic converter |
| Steering Head Angle | 63.5° |
| Trail | 115 mm |
| Wheel Base | 1,472 ± 15 mm |
| Ground Clearance | 155 mm |
| Seat Height | 865 mm |
| Tank Capacity | approx. 13.5 litres/2.5 litres reserve |
| Weight (Ready to Race) | approx. 148.5 kg (without fuel) |
Video
Press Reviews
KTM 690 Duke (2008-current) - MCN
The KTM 690 Duke's new LC4 single cylinder engine is the most impressive part of the new Duke. It’s hard to believe it’s a single, so much better than the lumpy single cylinder engines of old. The styling is very aggressive, it’s laden in quality parts like WP suspension and Brembo brakes, and on the right road, hairpin after hairpin its almost untouchable, shame we do not have those kinds of roads in the UK.
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