Naked Motorcycles
2023KTM 390 Duke
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The 2023 KTM 390 Duke is a lightweight naked bike designed for beginner and intermediate riders seeking an agile, fun daily commuter. Its 373cc single-cylinder engine delivers responsive performance with 43 horsepower, making it accessible yet engaging. Known for sharp handling and affordable thrills, it excels as an entry-level sportbike for urban riding and weekend adventures.
- Capacity
- 373.0 ccm
- Engine
- Single, four-stroke
- Gearbox
- 6-speed
- Dry weight
- 139.0 kg
- Seat height
- 830 mm
- Power
- 42.9 HP (32.0 kW) @ 9000 RPM
How it rides
Editorial estimate from the spec sheet - not lab tested- Best for
- Built primarily as a nimble city and canyon-carving streetfighter rather than a long-distance or off-road machine.
- Built for
- A punchy, single-cylinder naked bike with sharp handling, strong brakes, and an eager, playful attitude that rewards aggressive riding.
- Not ideal for
- Not the right choice for riders seeking a plush, wind-protected long-haul tourer or a capable off-road adventure companion.
Scores are derived from the spec sheet using the same model across every bike, so they compare like for like.
Will it fit you?
Worked out in your browser - nothing is sent to usRange and running costs
Worked out in your browser - nothing is sent to usBased on the published US (EPA-style) fuel economy estimate and tank size. Real-world figures depend on how and where you ride, and the last litres of a tank are reserve. Prices shown greyed are examples - type your own.
Engine
- Capacity
- 373.0 ccm
- Power
- 42.9 HP (32.0 kW) @ 9000 RPM
- CO2 Emissions
- 97 CO2 g/km
- EPA Certificate No.
- PKTXC.373EUS-013
- EPA Est. Fuel Consumption
- 4.15 L/100km (56.7 US mpg)
- EPA CO Emissions
- 0.4 CO g/km
- Torque
- 37.0 Nm (3.8 kgf-m)
- Engine type
- Single, four-stroke
- Power/weight ratio
- 0.3086 HP/kg (dry)
- Bore x stroke
- 89.0 x 60.0 mm
- Cooling system
- Liquid
- Fuel system
- Injection
- Starting
- Electric
- Ignition
- Bosch EMS
- Aspiration
- Naturally aspirated
- Valves per cylinder
- 4
- Lubrication system
- Wet sump
Transmission
- Gearbox
- 6-speed
- Transmission type
- Manual
- Final drive
- Chain
- Clutch
- Wet multi-disc clutch / mechanically operated
Dimensions & weight
- Wheelbase
- 1357 mm
- Seat height
- 830 mm
- Dry weight
- 139.0 kg
- Wet weight
- 150.0 kg
- Fuel capacity
- 13.40 litres
- Ground clearance
- 175 mm
Chassis & suspension
- Frame
- Steel trellis frame, powder coated
- Front suspension
- WP Apex Ø 43 mm
- Rear suspension
- WP Apex monoshock
- Front wheel travel
- 142 mm
- Rear wheel travel
- 150 mm
- Rake (fork angle)
- 24.0°
Brakes & wheels
- Front brakes
- Double disc. ABS. Four-piston radial fixed calliper.
- Front brakes diameter
- 320 mm
- Rear brakes
- Single disc. ABS. Single-piston floating calliper.
- Rear brakes diameter
- 230 mm
- ABS
- Yes
- Front tyre
- 110/90-17
- Rear tyre
- 150/60-17
Other
- Color options
- Black/orange
Compiled from manufacturer documentation and user contributions, corrected on an ongoing basis. Spotted something wrong? Tell us.
What changed, year to year
Differences highlighted| Specification | 2013 | 2016 | 2020 | 2023 | 2026 |
|---|---|---|---|---|---|
| Capacity | 375 cc | 373 cc | 373 cc | 373 cc | 399 cc |
| Dry weight | — | 139 kg | 139 kg | 139 kg | 149 kg |
| Seat height | 800 mm | 800 mm | 830 mm | 830 mm | 820 mm |
| Fuel capacity | 11 L | 11 L | 13.4 L | 13.4 L | 13.4 L |
Illustrative - generated automatically by diffing the year records already on file, not a manufacturer-published changelog.
Safety Recalls
⚠ 1 recall may applyVEHICLE SPEED CONTROL:THROTTLEMar 2026 · 26V196000
KTM North America, Inc. is recalling certain 2022-2023 390 Duke and 2022-2024 RC 390 motorcycles. Water may enter the throttle (e-throttle) control unit and cause it to fail, resulting in loss of drive power while riding.
Risk: Loss of drive power while riding increases the risk of a crash or injury.
Remedy: KTM will inspect and replace the e-throttle control, free of charge. Owner notification letters were mailed April 30, 2026. Owners may contact KTM customer service at 1-888-985-6090. Vehicle Identification Numbers (VINs) involved in this recall will become searchable on NHTSA.gov March 31, 2026. KTM's number for this recall is KTB2606 & HTB2603. This recall expands previous NHTSA recall number 25V598.
These recalls cover some 2023 bikes of this model. Whether one applies to a specific bike, and whether the repair has already been done, depends on its VIN — check your VIN with NHTSA or ask a dealer.
Source: NHTSA. View all KTM recalls →
Rider Reviews
Common questions
What is the engine size of the KTM 390 Duke?
The 2023 KTM 390 Duke has a Capacity of 373.0 ccm (22.76 cubic inches).
What engine power does the KTM 390 Duke have?
The 2023 KTM 390 Duke has a Power of 42.9 HP (32.0 kW) @ 9000 RPM.
How many gears does the KTM 390 Duke have?
The 2023 KTM 390 Duke has a Gearbox of 6-speed.
What is the torque of the KTM 390 Duke?
The 2023 KTM 390 Duke has a Torque of 37.0 Nm (3.8 kgf-m or 27.3 ft.lbs).
How much does the KTM 390 Duke weigh?
The 2023 KTM 390 Duke has a Dry weight of 139.0 kg (306.4 pounds).
Shop this bike
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The 2023 KTM 390 Duke is a top-of-the-line motorcycle that offers the perfect balance of performance and agility. With its powerful 373cc engine, lightweight chassis, and advanced technology features, this bike is perfect for both casual riders and experienced enthusiasts. The Duke's sleek and modern design is sure to turn heads on the road, while its comfortable riding position and intuitive controls make it easy to handle in any situation. Whether you're navigating through city streets or hitting the open road, the 2023 KTM 390 Duke delivers a thrilling and enjoyable riding experience.
In conclusion, the 2023 KTM 390 Duke is a standout choice for anyone in the market for a high-performance motorcycle. Its impressive power, advanced features, and stylish design set it apart from the competition, making it a top contender in its class. Whether you're a new rider looking for a reliable and exciting bike, or a seasoned veteran seeking a new thrill, the 2023 KTM 390 Duke is a fantastic option that offers the perfect combination of power, agility, and style.
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