2017 KTM 690 Duke Technical Analysis & Specification Breakdown
Engineered by KTM for the naked motorcycle segment, the 2017 KTM 690 Duke relies on a 690 cc (42.1 cu in) liquid-cooled single cylinder, four-stroke powerplant. In factory specification, peak output is rated at 73 HP (53.3 kW) while maximum torque reaches 74 Nm (54.6 lb-ft), transferring power to the rear wheel through a 6-speed gearbox and chain final drive. With a specific output of 105.8 HP per liter, the engine character is reflecting a performance-oriented street tune that balances strong mid-range pull with an energetic top-end rush.
On the scales, the 690 Duke measures 148.5 kg (327 lbs) dry, translating to a power-to-weight ratio of 0.49 HP/kg (2.03 kg per horsepower). Rider ergonomics and chassis geometry center around a 835 mm (32.9 in) seat height — resulting in a taller command-style riding posture suited to medium-to-tall inseams, combined with a 1,466 mm (57.7 in) wheelbase engineered for balanced agility and highway composure. The 14-liter (3.7 US gal) fuel tank supports practical everyday commuting and weekend road stints.
Within MotoLibrary's KTM archive, this model family spans 10 indexed model years from 2008 to 2019, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Specific Output
105.8 HP/L
Power-to-Weight
0.49 HP/kg (2.03 kg/HP)
Standover Height
835 mm (32.9 in)
Engine
Displacement690.0 ccm (42.10 cubic inches)
Engine TypeSingle cylinder, four-stroke
Engine DetailsSingle cylinder, four-stroke
Power73.0 HP (53.3 kW))
Torque74.0 Nm (7.5 kgf-m or 54.6 ft.lbs)
Bore x Stroke105.0 x 80.0 mm (4.1 x 3.1 inches)
Fuel SystemInjection
IgnitionKeihin EMS with RBW, twin ignition
LubricationSemi-dry-sump lubrication with 2 rotor pumps
Use this page to compare this motorcycle by its real specifications, not only by model name. Focus on the details that affect fit, comfort, handling, range and ownership.
Power
Compare engine output with similar motorcycles if acceleration, highway use or two-up riding matters.
Torque
Torque is useful for judging real-world pull, especially for touring, commuting and loaded riding.
Seat Height
Check the seat height against your inseam and riding posture before choosing a motorcycle.
Weight
Compare weight carefully because it affects low-speed handling, parking and confidence.
Fuel Capacity
Fuel capacity helps estimate touring range and how often you may need to stop.
Brakes
Brake setup is worth comparing if you ride in traffic, mountains or with a passenger.
Suspension
Suspension details can matter for comfort, road feel and long-distance riding.
Transmission
Transmission and final drive affect maintenance, smoothness and everyday usability.
