KTM
| Torque | 39 Nm / 28.8 lb-ft |
| Transmission | 6-speed |
| Battery capacity | 8 Ah |
| Cooling | Liquid cooled |
| Power in KW | 33 kW / 44.3 hp |
| Starter | Electric starter |
| Stroke | 64 mm / 2.52 " |
| Bore | 89 mm / 3.5 " |
| Clutch | PASC™ antihopping clutch, mechanically operated |
| Displacement | 398.7 cm³ / 24.33 in³ |
| EMS | Bosch EMS with RBW |
| Design | 1-cylinder, 4-stroke engine |
| Fuel-mixture generation | Bosch EFI (throttle valve 46 mm / 1.81 ") |
| Lubrication | Wet sump |
| Weight | 165 kg / 363.8 lbs |
| Wheelbase | 1357 mm / 53.43 " |
| ABS | Bosch 9.3 MP Two Channel (Supermoto ABS) |
| Front brake disc diameter | 320 mm / 12.6 " |
| Rear brake disc diameter | 240 mm / 9.45 " |
| Front brake | Four-piston radial fixed calliper, brake disc |
| Rear brake | Single-piston floating calliper |
| Chain | 520 X-Ring |
| Frame design | Steel trellis frame, powder coated |
| Front suspension | WP APEX 43 |
| Rear suspension | WP APEX - Monoshock |
| Seat height | 820 mm / 32.28 " |
| Rear subframe design | Die-cast aluminium |
| Suspension travel (front) | 150 mm / 5.91 " |
| Suspension travel (rear) | 150 mm / 5.91 " |
| Wheels | Cast aluminium wheels |
BMW • 2024
Yamaha • 2023
Yamaha • 2024
Kawasaki • 2023
Kawasaki • 2025
Honda • 2024
KTM’s smallest “Duke” punches way above its weight with a torquey single, quality chassis parts, and sharp street manners. If you’re cross-shopping lightweight naked bikes, the 2024 KTM 390 Duke specs make a compelling case for riders who want real performance without excessive size or complexity. This KTM 390 Duke review focuses on how its numbers translate to everyday riding.
The 398.7 cm³ single-cylinder, 4-stroke engine gives the 390 Duke its signature punch. With 33 kW (44.3 hp) and 39 Nm (28.8 lb-ft), it pulls cleanly from low revs and rewards short-shifting in city traffic. Bosch EFI (with a 46 mm throttle valve) and Bosch EMS with ride-by-wire deliver crisp response, while the PASC anti-hopping clutch helps keep things composed during aggressive downshifts and spirited corner entries.
On the highway, that same combination makes the most of the 6-speed gearbox, giving you enough headroom to cruise while retaining strong roll-on for overtakes. The liquid-cooled, wet-sump design adds durability and thermal stability, and the electric starter keeps daily use simple. This blend of usable torque and responsive fueling is exactly why so many riders gravitate to lightweight nakeds.
The KTM 390 Duke weight is 165 kg (363.8 lbs), and that light, centralized feel is obvious from the first turn of the bars. A steel trellis frame (powder coated) paired with a die-cast aluminium subframe provides a precise, communicative chassis, while cast aluminium wheels help the bike change direction quickly.
Suspension is handled by WP APEX 43 up front and a WP APEX monoshock at the rear, with 150 mm (5.91 in) of travel at both ends. The 1357 mm (53.43 in) wheelbase strikes a nice balance between agility and stability. The KTM 390 Duke seat height of 820 mm (32.28 in) should suit a wide range of riders: approachable enough for newer or shorter riders, yet tall enough for those who prefer a commanding view. Low-speed maneuvering is easy, parking-lot agility is excellent, and the overall ergonomics support daily commuting as well as weekend backroad rides.
KTM equips the 390 Duke with serious stopping power: a 320 mm (12.6 in) front disc with a four-piston radial fixed caliper and a 240 mm (9.45 in) rear disc with a single-piston floating caliper. Bosch 9.3 MP Two Channel ABS with Supermoto ABS adds confidence under hard braking.
Electronics and fueling are handled by Bosch EMS with RBW and Bosch EFI (46 mm throttle valve), while the drivetrain uses a 6-speed transmission and a PASC anti-hopping clutch. Other notable details include a 520 X-Ring chain, 8 Ah battery capacity, liquid cooling, and 150 mm of suspension travel front and rear. This thoughtful spec sheet underscores the bike’s mix of everyday usability and track-ready character.
If you value nimble handling, quality components, and a strong spec-for-buck proposition, the 2024 KTM 390 Duke delivers. Its 33 kW (44.3 hp) and 39 Nm flow through excellent fueling and a slick 6-speed with an anti-hopping clutch, while WP suspension and Bosch ABS provide real confidence on imperfect roads.
As with any naked, wind protection is minimal on longer highway stints, but that’s part of the genre. For riders who prioritize lightweight performance and sharp response, the 390 Duke remains a standout choice in the small-displacement naked class.
Is the 2024 KTM 390 Duke good for beginners? Yes. With 165 kg (363.8 lbs) weight, ABS, predictable power delivery, and a manageable 820 mm (32.28 in) seat height, it’s very beginner-friendly while still rewarding skilled riders.
What is the seat height of the 2024 KTM 390 Duke? The KTM 390 Duke seat height is 820 mm (32.28 in).
How heavy is the 2024 KTM 390 Duke? The KTM 390 Duke weight is 165 kg (363.8 lbs).
How much power does the 2024 KTM 390 Duke make? It produces 33 kW (44.3 hp) and 39 Nm (28.8 lb-ft) of torque.
What braking and ABS system does it have? It uses a 320 mm front disc with a four-piston radial caliper, a 240 mm rear disc with a single-piston caliper, and Bosch 9.3 MP Two Channel ABS (Supermoto ABS).