2019 Ktm 250 Duke Technical Analysis & Specification Breakdown
Engineered by Ktm for the sport motorcycle segment, the 2019 Ktm 250 Duke features a 248.8 cc (15.2 cu in) liquid-cooled single cylinder, two-stroke configuration. In factory specification, peak output is rated at 29.5 HP (21.5 kW), transferring power to the rear wheel through a 5-speed gearbox and chain final drive. With a specific output of 118.6 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 250 Duke measures 146 kg (322 lbs) dry, translating to a power-to-weight ratio of 0.2 HP/kg (4.95 kg per horsepower). Rider ergonomics and chassis geometry center around a 820 mm (32.3 in) seat height — resulting in a taller command-style riding posture suited to medium-to-tall inseams. The 13.4-liter (3.5 US gal) fuel tank paired with a rated consumption of 3.24 L/100 km provides an estimated theoretical range of roughly 414 km (257 miles) between fill-ups.
Within MotoLibrary's Ktm archive, this model family spans 7 indexed model years from 2016 to 2026, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Specific Output
118.6 HP/L
Power-to-Weight
0.2 HP/kg (4.95 kg/HP)
Theoretical Range
~414 km (257 mi)
Engine
Displacement248.8 ccm (15.18 cubic inches)
Engine TypeSingle cylinder, two-stroke
Engine DetailsReed intake
Power29.5 HP (21.5 kW))
Bore x Stroke72.0 x 61.1 mm (2.8 x 2.4 inches)
Fuel SystemCarburettor
Fuel ControlDouble Overhead Cams/Twin Cam (DOHC)
CoolingLiquid
Transmission
Gearbox5-speed
Final DriveChain (final drive)
ClutchSlipper clutch
Performance
Fuel Consumption3.24 litres/100 km (30.9 km/l or 72.60 mpg)
Greenhouse Gases75.2 CO2 g/km. (CO2 - Carbon dioxide emission)
Chassis
Frame TypeChrome-molybdenum steel central-tube
Rake26.5°
Front SuspensionWP-USD
Front Travel310 mm (12.2 inches)
Rear SuspensionWP shock absorber with linkage
Rear Travel300 mm (11.8 inches)
Ground Clearance185 mm (7.3 inches)
Wheels & Brakes
Front BrakesSingle disc. Brembo ABS
Front Brake Ø300 mm (11.8 inches)
Rear BrakesSingle disc. ABS
Rear Brake Ø230 mm (9.1 inches)
WheelsCNC machined hubs. Excel rims. Wire spoked.
Dimensions & Weight
Dry Weight146.0 kg (321.9 pounds)
Power/Weight0.2021 HP/kg
Seat Height820 mm (32.3 inches) If adjustable, lowest setting.
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.
