2017 KTM 390 Duke Technical Analysis & Specification Breakdown
Built around KTM's naked motorcycle platform, the 2017 KTM 390 Duke relies on a 373.2 cc (22.8 cu in) liquid-cooled single cylinder, four-stroke powerplant. In factory specification, peak output is rated at 44 HP (32.1 kW), transferring power to the rear wheel through a 6-speed gearbox and chain final drive. With a specific output of 117.9 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 390 Duke measures 149 kg (328 lbs) dry, translating to a power-to-weight ratio of 0.3 HP/kg (3.39 kg per horsepower). Rider ergonomics and chassis geometry center around a 830 mm (32.7 in) seat height — resulting in a taller command-style riding posture suited to medium-to-tall inseams, combined with a 1,357 mm (53.4 in) wheelbase engineered for quick, flickable steering geometry. The 13.4-liter (3.5 US gal) fuel tank supports practical everyday commuting and weekend road stints.
Within MotoLibrary's KTM archive, this model family spans 11 indexed model years from 2013 to 2026, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
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.
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.
