NO DEALER SETUP or ADM FEES
The price you see is the price you get.
No hidden markups. No surprises. Just a transparent quote.
Quick links from Poway Powersports (San Diego) to help you shop with confidence.
Local availability & next steps
View PagePower, gearing, ride feel
View PageSetup notes & handling
View PageWhat's new & key highlights
View PageService, support, and local expertise
View PageThe 2026 KTM 390 Duke in BLACK is a sharp, lightweight naked built for riders who want quick handling and a lively, responsive feel around town and on tight backroads. Its liquid-cooled, single-cylinder 398.7 cm³ LC4c engine puts out 45 PS and 39 Nm through a 6-speed gearbox, managed by Bosch EMS with ride-by-wire. You also get a 5-inch bonded-glass TFT with smartphone connectivity and Turn-by-Turn navigation, plus selectable Ride Modes including TRACK with Launch Control. WP APEX suspension adjustability and cornering ABS with SUPERMOTO ABS round out a focused, modern street package.
KTM’s latest-generation LC4c platform brings a 398.7 cm³ liquid-cooled single-cylinder engine with Bosch EMS and ride-by-wire. Output is rated at 45 PS and 39 Nm, paired with a 6-speed transmission. The package is designed to deliver smooth acceleration and punchy performance in a lightweight streetfighter layout.
A 43 mm WP APEX open-cartridge fork delivers 150 mm of travel with adjustable compression and rebound to help you dial in feel for your roads and pace. In back, the WP APEX Separate piston shock also provides 150 mm of travel, with rebound adjustment via a 5-step clicker plus preload adjustment for tuning comfort, traction, and stability.
A 5-inch bonded-glass TFT dashboard and updated switch cube make it easy to manage bike functions on the move, including smartphone connectivity for music, incoming calls, and Turn-by-Turn navigation. Ride Modes include STREET, RAIN, and TRACK, with TRACK Mode adding race-focused display graphics and access to Launch Control.
At the heart of the 390 Duke is a liquid-cooled, 1-cylinder, 4-stroke engine with 398.7 cm³ displacement. KTM rates it at 45 PS and 39 Nm, controlled by Bosch EMS with ride-by-wire for precise throttle management. A 6-speed transmission keeps the powerband accessible whether you’re working through traffic or stretching out a twisty road.
The drivetrain is completed with a 520 X-Ring chain, a proven choice for street durability. CO2 emissions are listed at 79 g/km. KTM specifies Motorex Formula 4T 15W/50 engine oil.
The chassis is built around a steel trellis frame, powder coated, with a two-piece construction that incorporates a pressure die-cast aluminum subframe. KTM’s design places the rear shock off-center, a layout intended to create space for a larger airbox while also contributing to the bike’s aggressive stance.
Suspension is WP APEX front and rear, each with 150 mm of travel. Up front, the WP APEX 43 fork offers compression and rebound adjustment. Out back, the WP APEX Separate piston shock is rebound adjustable and includes a preload adjuster, making it straightforward to tailor setup for rider preference and changing road conditions. Seat height is listed at 820/800 mm, and wheelbase is 1357 mm. Weight fully fueled is 165 kg.
Braking hardware is anchored by a 320 mm front disc paired with a four-piston radial fixed caliper, backed by a 240 mm rear disc. KTM also fits Cornering ABS as standard, helping add control when braking while leaned over.
For riders who want a more supermoto-style approach, SUPERMOTO ABS is included as a standard feature as well, giving the 390 Duke added flexibility in how electronic braking support is applied. The combination of big-disc sizing and modern ABS functionality is aimed at consistent performance across spirited street riding and daily use.
The 390 Duke’s 5-inch bonded-glass TFT dashboard is designed to put key info and settings in one place, and it’s paired with a switch cube featuring 4-way menu controls for quick navigation. Integrated connectivity functions support music, incoming calls, and Turn-by-Turn guidance through the display interface.
Ride Modes include STREET, RAIN, and TRACK, selectable via the TFT. TRACK Mode changes the dash presentation with a race-focused layout that enlarges the rev counter and adds features like a lap timer and selected gear display. With TRACK Mode selected, Launch Control can be engaged, with the engine peaking at 7,000 rpm at wide open throttle while you prepare to release the clutch.
In BLACK, the 390 Duke’s naked bodywork highlights its sharp, angular lines, visible air intakes, and aggressive stance. KTM specifies a metal fuel tank, color-injected plastics, and external LED positioning lights to complete the look.
All KTM DUKE models come equipped with LED lighting front and rear for strong illumination and visibility in low-light conditions. A high-quality, multi-layer wet-painted finish with clear-gloss graphics is paired with a DUKE textured seat cover, rounding out a premium look and feel that matches the bike’s compact, performance-focused layout.
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 - BLACK, 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.
