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View PageThe 2026 KTM 390 Duke in BLUE is a lightweight, sharp-handling naked built for riders who want quick reactions in the city and confidence on twisty roads. Power comes from a liquid-cooled 398.7 cm³ single-cylinder, 4-stroke engine making 45 PS and 39 Nm, paired with a 6-speed transmission and Bosch EMS with RBW. It’s equipped with a 5-inch bonded-glass TFT display with smartphone connectivity and Turn-by-Turn, plus multiple Ride Modes including TRACK Mode with Launch Control. WP APEX suspension and a steel trellis frame round out a focused, agile package.
At the core is KTM’s liquid-cooled 398.7 cm³ 1-cylinder, 4-stroke platform, delivering 45 PS and 39 Nm through a 6-speed transmission. Bosch EMS with RBW (ride-by-wire) supports smooth control, while selectable Ride Modes let you tailor response to conditions. For riders who like to fine-tune how the bike feels from commute to canyon, the DUKE’s electronics and updated engine package bring a well-rounded, lively character.
The KTM 390 Duke is set up with WP APEX suspension at both ends, including a 43 mm WP APEX open-cartridge fork with compression and rebound adjustment. Out back, an off-center WP APEX Separate piston shock provides 150 mm travel and allows rebound adjustment via a 5-step clicker, plus preload adjustment. With 150 mm suspension travel front and rear, it’s built to balance comfort, traction, and a more aggressive pace.
A 5-inch bonded-glass TFT dashboard and new switch cube with 4-way menu switches put key functions right at your fingertips. Connectivity features support music, incoming calls, and Turn-by-Turn navigation through the display. Ride Modes include STREET, RAIN, and TRACK Mode; select TRACK and you can also initiate Launch Control, which holds the engine at 7,000 rpm with wide-open throttle while you manage the clutch.
The 390 Duke’s chassis is built around a steel trellis main frame with a pressure die-cast aluminum subframe. KTM mounts the rear shock off-center, a layout designed to create space for a larger airbox while also reducing seat height and contributing to the DUKE’s aggressive stance. KTM’s stated objective with the frame design is to enhance vehicle dynamics through torsional rigidity, agility, and improved chassis feedback.
A curved cast aluminum swingarm supports the rear suspension with a direct shock mount that’s offset to the side, and the wheelbase measures 1357 mm. Final drive is handled by a 520 X-Ring chain, selected for durability and consistent performance.
Up front, braking is handled by a 320 mm front disc paired with a four-piston radial fixed caliper. At the rear, a 240 mm disc manages braking duties. KTM notes the updated brake design is intended to reduce operating temperature, improve resistance to fading, and extend pad lifespan.
For control when conditions change, Cornering ABS and SUPERMOTO ABS are standard features. That combination is aimed at giving the 390 Duke strong braking hardware with electronics that help support stability while you focus on your line and inputs.
The 5-inch TFT display is the center of the cockpit, presenting ride information and serving as the gateway to the bike’s settings. TRACK Mode changes the screen layout to be more race-focused by enlarging the rev counter, showing a laptimer, displaying selected gear, reducing the size of the speed readout, and presenting preferred rider aid settings.
Ride Modes are selectable through the TFT: STREET Mode is standard, RAIN Mode is designed to be more controlled in wet conditions, and TRACK Mode is aimed at track use. With TRACK Mode selected, you can engage Launch Control, which holds the engine at 7,000 rpm at wide-open throttle until the clutch is released.
In BLUE, the 390 Duke’s naked bodywork emphasizes sharp lines, visible air intakes, and an aggressive stance. KTM fits a metal fuel tank, color-injected plastics, and external LED positioning lights to complete the look. Premium styling details include a high-quality, multi-layered wet-painted finish with clear-gloss graphics, paired with a textured seat cover.
All KTM DUKE models are equipped with LED lighting at the front and rear, intended to improve visibility at night as well as in busy traffic or misty road conditions. Seat height is listed at 820/800 mm, and weight fully fueled is 165 kg.
Finding that perfect balance when attacking your favorite stretch of tarmac, or sliding around some tight cone-marked corners is easy thanks to the KTM 390 DUKE's 43 mm WP APEX open cartridge fork with adjustable compression and rebound. On the rear, the WP APEX Separate piston shock absorber can also be set for rebound and preload, to find the ideal mix between comfort and traction.
Everything you need at a glance. The KTM 390 DUKE features a 5" bonded glass TFT dashboard. This is paired with a new switch cube, with 4-way menu switches that allow easy interaction with all vehicle functions - even smartphone connectivity. Speaking of which, all DUKE models are equipped with connectivity functions, allowing pilots to play music, take incoming calls, and get to where they are going with Turn-by-Turn
Embracing its NAKED lineage, the KTM 390 DUKE has no shame in bearing it all. Casting an ever-impressive shadow, bristling with shark-like edges and visible air intakes, the KTM 390 DUKE boasts an aggressive stance. A metal fuel tank, color-injected plastics, and external LED positioning lights complete the package.
Premium looks come standard on the KTM 390 DUKE. A high-quality, multi-layered, wet-painted finish with clear-gloss graphics perfectly set off the unique DUKE textured seat cover. Make no mistake, this is 100% DUKE with 110% street-cred.
Everything you need at a glance. The KTM 390 DUKE features a 5" bonded glass TFT dashboard. This is paired with a new switch cube, with 4-way menu switches that allow easy interaction with all vehicle functions - even smartphone connectivity. Speaking of which, all DUKE models are equipped with connectivity functions, allowing pilots to play music, take incoming calls, and get to where they are going with Turn-by-Turn
Boasting the latest generation in LC4c engines, the KTM 390 DUKE muscles up with a 399 cc capacity, more power, smoother acceleration, and lighter overall weight than the previous generation. Drawing from years of experience in the small engine game, the KTM 390 DUKE now also features an improved gearbox, and an optimized cylinder head, and is ready to adopt EURO5+ emission standards. Oh, and did we mention it is also READY TO RACE?
The KTM 390 DUKE gives its pilots a selection of Ride Modes to best suit whatever conditions they find themselves in. With STREET Mode activated as standard, this unleashes all the KTM 390 DUKE's fury, while RAIN Mode works to keep things a little more controlled in the wet. For flat-out track enthusiasts, we now give you TRACK Mode! All are easily toggled in via the TFT display.
TRACK Mode transforms the 5" TFT display graphics to be more race-focused, enlarging the rev counter, showing the laptimer, selected gear display, reduces the size of the speed readout, and shows preferred rider aid settings. What's more, TRACK Mode also allows riders to initiate Launch Control.
Get ready to rocket off the line, because, for the first time ever, the KTM 390 DUKE comes equipped with Launch Control as standard. With TRACK Mode selected and Launch Control engaged, the engine will peak at 7,000 rpm with a wide open throttle, waiting for the rider to release the clutch.
Tearing a deep gash into the night, all KTM DUKE models come equipped with powerful LED lights in the front and at the rear. Not only do these work when the world becomes dark, but they also provide improved visibility when navigating busy traffic or misty road conditions.
Lightweight forged aluminum footpeg hangers and grippy footpegs ensure riders have uninterrupted grip when banging through the gears, with high-end CNC-machined footpegs available from the KTM PowerParts catalog.
The frame features a 2-piece construction composed of a steel trellis main frame with a pressure die-cast aluminum subframe. The rear shock absorber is mounted off-center to allow for a larger airbox while reducing seat height and, at the same time, adding to the DUKE's aggressive stance. Not only designed for looks, the primary objective of the frame design is to enhance vehicle dynamics by augmenting torsional rigidity, improved agility, and enhanced feedback from the chassis.
A curved cast aluminum swingarm provides a sturdy and durable platform for the rear suspension system, featuring a direct shock absorber mount that is offset to the side, for that super-racy look. This also creates additional space for the new exhaust muffler, providing added attitude.
Upfront, a 43 mm WP APEX open cartridge fork with 150 mm travel keeps things in check, with adjustable compression and rebound settings.
On the rear, you'll find an off-center WP APEX Separate piston shock absorber with 150 mm of travel. Rebound is easily adjusted with a 5-step clicker, and is also preload adjustable.
Reducing weight where it counts the most, the KTM DUKE range has made significant inroads at reducing unsprung mass thanks to a set of lightweight wheels, wrapped in grippy Michelin tires. This not only improves the overall handling characteristics but also means quicker turn-in and less strain on working components like axels and bearings.
On the front wheel, the KTM 390 DUKE boasts a 320 mm brake disk with brand-new four-piston radial WP FCR4 brake caliper. The new design includes bigger disks to reduce the operating temperature with improvements in the resistance to fading and longer pad lifespan. On the rear wheel, a 240 mm brake disk is installed with a new single-piston WP RCF4 caliper which carries the same benefits as the front wheel. Cornering ABS and SUPERMOTO ABS are standard features.
This motorcycle comes with a PREMIUM MANUFACTURER'S WARRANTY. Riders enjoy up to 4 years of coverage; ride worry-free and experience the thrill of KTM with added peace of mind. To keep the warranty valid, regular services must be performed according to the service plan at an authorized KTM dealer. More information and details on how to benefit from this offer can be found on the KTM warranty page. Valid from Model Year 2025 onwards for all street legal motorcycles across the entire street range. Previously limited to selected models, the Premium Manufacturer's Warranty now covers the entire street range.
Download official PDF resources for the 2026 KTM 390 Duke - BLUE, including the product brochure and owner’s manual when available.
See TERMS for details. Plus government fees and taxes, any finance charges, dealer document processing charges, electronic filing fees, emission testing charges, and freight. All sale prices include applicable factory incentives. Availability may vary. Some items may not be in immediate dealer stock and may require ordering. Estimated order time ranges from 1 to 90 days. Please see terms for full details. Please call to confirm availability.
