2020 Ktm 790 Duke Technical Analysis & Specification Breakdown
At the heart of the 2020 Ktm 790 Duke naked motorcycle, Ktm relies on a 799 cc (48.8 cu in) liquid-cooled twin, four-stroke powerplant. In factory specification, peak output is rated at 105 HP (76.6 kW) while maximum torque reaches 87 Nm (64.2 lb-ft), transferring power to the rear wheel through a 6-speed gearbox and chain final drive. With a specific output of 131.4 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 790 Duke measures 187 kg (412 lbs) wet (curb), translating to a power-to-weight ratio of 0.56 HP/kg (1.78 kg per horsepower). Rider ergonomics and chassis geometry center around a 825 mm (32.5 in) seat height — resulting in a taller command-style riding posture suited to medium-to-tall inseams, combined with a 1,475 mm (58.1 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 7 indexed model years from 2018 to 2026, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Specific Output
131.4 HP/L
Power-to-Weight
0.56 HP/kg (1.78 kg/HP)
Standover Height
825 mm (32.5 in)
Engine
Displacement799.0 ccm (48.75 cubic inches)
Engine TypeTwin, four-stroke
Power105.0 HP (76.6 kW))
Torque87.0 Nm (8.9 kgf-m or 64.2 ft.lbs)
Bore x Stroke88.0 x 65.7 mm (3.5 x 2.6 inches)
Fuel SystemInjection
IgnitionBosch EMS with RBW
LubricationForced oil lubrication with 2 oil 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.
