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KTM 390 Duke
2021Naked

KTM 390 Duke

Key specifications

Engine
373 cc
Power
44 HP
Torque
37 Nm
Weight
150 kg
Fuel type
petrol
Fuel capacity
3.5 L
Transmission
6-speed
Seat height
33 mm
Front brakes
Double disc. ABS. Four-piston radial fixed calliper.
Rear brakes
Single disc. ABS. Single-piston floating calliper.

Overview

Introducing the 2021 KTM 390 Duke, a standout in the naked bike category that perfectly balances aggressive styling, nimble handling, and exhilarating performance. Designed for both the urban rider and the open road enthusiast, the 390 Duke is a masterful blend of cutting-edge engineering and bold aesthetics. With its lightweight frame and sharp lines, this motorcycle commands attention while promising an engaging ride that caters to both new riders and seasoned motorcyclists alike. At the heart of the 390 Duke lies a potent single-cylinder, four-stroke engine with a displacement of 373 ccm that churns out an impressive 44 horsepower and 37 Nm of torque. This powerplant, paired with a seamless 6-speed gearbox, delivers a thrilling ride, whether you're darting through city traffic or carving up winding country roads. The liquid-cooled engine boasts a high-revving character that encourages spirited riding, while the precise throttle response ensures that every twist of the wrist translates into exhilarating acceleration. Coupled with a lightweight frame weighing in at just 150 kg (330.7 lbs), the 390 Duke's power-to-weight ratio of 0.2933 HP/kg allows for nimble handling and a dynamic riding experience that is both fun and confidence-inspiring. The 2021 KTM 390 Duke is not just about raw power; it's equipped with an array of advanced features that enhance both performance and rider comfort. The steel trellis frame provides exceptional rigidity and stability, while the WP Apex suspension—featuring Ø 43 mm front forks and a monoshock rear—delivers superb handling and a smooth ride over various terrains. The double disc front brakes with ABS and a single disc rear brake ensure reliable stopping power, allowing riders to tackle corners and sudden stops with confidence. Additionally, the electric starter, customizable seat height, and stylish color options in black, orange, and white make this bike as practical as it is visually appealing. **

Pros

  • Agile Handling: The lightweight frame and responsive suspension make the 390 Duke incredibly nimble, perfect for city riding and twisty roads.
  • Powerful Engine: The single-cylinder engine delivers strong performance with impressive acceleration, making it enjoyable for both commuting and weekend rides.
  • Advanced Features: Equipped with ABS, a robust braking system, and a visually striking design, the 390 Duke combines safety with style.

Cons

  • Limited Passenger Comfort: The seat may not be as accommodating for long-distance rides with a passenger, making it less ideal for two-up touring.
  • Minimal Wind Protection: As a naked bike, the 390 Duke offers little in the way of wind protection, which can be felt at higher speeds.
  • Seat Height: While the seat height is manageable for many riders, those with shorter inseams may find it a bit challenging to flat-foot the bike at stops.

Technical details

Source specification data

Make
KTM
Model
390 Duke
Category
Naked bike
Light
LED headlight
Starter
Electric
Color Options
Black/orange/white
Power
44.0 HP (32.1 kW))
Clutch
Wet multi-disc clutch / mechanically operated
Torque
37.0 Nm (3.8 kgf-m or 27.3 ft.lbs)
Gearbox
6-speed
Ignition
Bosch EMS
Fuel System
Injection
Bore X Stroke
89.0 x 60.0 mm (3.5 x 2.4 inches)
Displacement
373.0 ccm (22.76 cubic inches)
Cooling System
Liquid
Engine Details
Single cylinder, four-stroke
Lubrication System
Wet sump
Valves Per Cylinder
4
Transmission Type Final Drive
Chain
Dry Weight
150.0 kg (330.7 pounds)
Seat Height
830 mm (32.7 inches) If adjustable, lowest setting.
Fuel Capacity
13.40 litres (3.54 gallons)
Ground Clearance
175 mm (6.9 inches)
Power Weight Ratio
0.2933 HP/kg
Reserve Fuel Capacity
3.46 litres (0.91 gallons)
Rake
24.0°
Wheels
Alloy wheels
Rear Tyre
150/60-17
Frame Type
Steel trellis frame, powder coated
Front Tyre
110/90-17
Rear Brakes
Single
disc.
S
.
Single
-piston floating calliper.
Front Brakes
Double
disc.
S
.
Four
-piston radial fixed calliper.
Rear Suspension
WP APEX Monoshock
Front Suspension
WP Apex Ø 43 mm
Rear Wheel Travel
150 mm (5.9 inches)
Front Wheel Travel
142 mm (5.6 inches)

Available colors

Black/orange/white