Segment: Enduro/Offroad
Production years: 1994, 1995, 1996, 1997, 1998, 1999
The Duke was KTM's first street bike, and first supermoto, having previously made only off-road and racing motorcycles. The 690 Duke is the latest generation in KTM's line of midrange single-cylinder engine supermoto or naked motorcycles that began with the 1994 609 cc (37.2 cu in) displacement. The thumping carb-fed SOHC single is all about delivering maximum power at minimum revs, with peak torque at just 5000rpm. This means there’s instant shove and a healthy mid-range, which combined with a dry weight of 152kg means easy wheelies.
engine specs | Type: | Liquid cooled, single cylinder, 4 stroke, 4 valves per cylinder | Displacement: | 609 cm3 | Bore X Stroke: | 4.0x3.0 in OR 102 mm | Compression Ratio: | 10.4:1 | Horsepower: | 50/7250 KW(hp)/RPM | Torque: | 36.9/5900 lb-ft/RPM OR 50/5900 Nm/RPM | Fuel System: | Carburetors |
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transmission specs | Gearbox: | 5-Speed | Clutch: | Wet multi-discs | Primary Drive: | - | Final Drive: | Chain |
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chassis specs | Frame: | - | Front Suspension: | White power | Rear Suspension: | Wire spoked | Front Brake: | 320mm disc | Rear Brake: | 220mm disc |
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dimension specs | Overall Length: | - | Overall Width: | - | Seat Height: | 34.3 in OR 871 mm | Wheelbase: | 58.3 in OR 1481 mm | Ground Clearance: | - | Weight: | 315 lbs OR 143 kg | Fuel Capacity: | 3.1 gallons OR 11.7 L |
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tyres specs | Front: | 120/70-17 | Rear: | 150/50-18 |
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power system specs | Power pack: | - | Nominal Capacity: | - | Maximum Capacity: | - | Charger type: | - | Charging time (normal): | - | Charging time (quick): | - | Range: | - |
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