2026 KTM 390 DUKE
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2026 KTM 390 DUKE
THE CORNER ROCKET
The 2026 KTM 390 DUKE brings aggressive styling, lightweight handling, and serious single-cylinder performance to the streets. Built for riders who want an exciting and responsive motorcycle, the 390 DUKE combines everyday comfort with the sharp handling and unmistakable attitude of KTM’s NAKED lineup.
Its 398.7cc liquid-cooled four-stroke engine produces 45 PS and 39 Nm of torque, delivering strong acceleration through a smooth six-speed transmission. Bosch engine management with ride-by-wire provides precise throttle response, while the compact chassis and premium WP APEX suspension help make every corner more engaging.
2026 KTM 390 DUKE SPECIFICATIONS
| Engine Type | Single-cylinder, four-stroke |
| Displacement | 398.7cc |
| Power | 45 PS |
| Torque | 39 Nm |
| Transmission | Six-speed |
| Cooling | Liquid-cooled |
| Engine Management | Bosch EMS with ride-by-wire |
| Engine Oil | Motorex Formula 4T 15W/50 |
| CO₂ Emissions | 79 g/km |
| Frame | Powder-coated steel trellis frame |
| Front Suspension | WP APEX 43 |
| Front Suspension Travel | 150 mm / 5.9 inches |
| Rear Suspension Travel | 150 mm / 5.9 inches |
| Front Suspension Adjustment | Compression and rebound adjustable |
| Rear Suspension Adjustment | Rebound and preload adjustable |
| Front Brake | Four-piston radial fixed caliper |
| Front Brake Disc | 320 mm |
| Rear Brake Disc | 240 mm |
| Chain | 520 X-Ring |
| Wheelbase | 1,357 mm / 53.4 inches |
| Seat Height | 820 mm or 800 mm / 32.3 or 31.5 inches |
| Weight Fully Fueled | 165 kg / approximately 364 pounds |
ENGINE AND PERFORMANCE
At the heart of the 2026 KTM 390 DUKE is a 398.7cc single-cylinder, liquid-cooled engine designed to deliver responsive power across a broad operating range. Producing 45 PS and 39 Nm of torque, the engine offers plenty of performance for daily commuting, freeway riding, and spirited weekend trips through San Diego County.
A six-speed transmission allows riders to make full use of the engine’s performance, while Bosch EMS with ride-by-wire provides smooth and accurate throttle control. The lightweight engine design also helps maintain the agile and responsive character that defines the KTM DUKE lineup.
WP APEX SUSPENSION
The KTM 390 DUKE is equipped with premium WP APEX suspension designed to provide excellent control, comfort, and road feedback. The WP APEX 43 front suspension offers 150 mm of travel and adjustable compression and rebound damping, allowing riders to fine-tune the front end for their preferred riding style.
The rear suspension also provides 150 mm of travel and includes adjustable rebound damping and spring preload. This adjustable suspension setup gives the 390 DUKE impressive versatility for city streets, winding roads, and everyday riding.
LIGHTWEIGHT AND AGILE CHASSIS
A powder-coated steel trellis frame provides the rigidity and precise handling expected from KTM. Its compact 1,357 mm wheelbase helps the motorcycle change direction quickly while maintaining stability at higher speeds.
With a fully fueled weight of approximately 165 kg, the 390 DUKE remains lightweight and manageable. The two-position seat height can be configured at 820 mm or 800 mm, allowing the motorcycle to accommodate a wider range of riders.
CONFIDENT BRAKING PERFORMANCE
A large 320 mm front brake disc is paired with a four-piston radial fixed caliper to deliver strong and controlled stopping power. A 240 mm rear brake disc provides additional control and stability during braking.
This powerful braking system complements the lightweight chassis and responsive suspension, giving the rider confidence in traffic, through tight corners, and during more aggressive street riding.
2026 KTM 390 DUKE FEATURES
- 398.7cc single-cylinder, four-stroke engine
- 45 PS and 39 Nm of torque
- Six-speed transmission
- Liquid-cooled engine
- Bosch engine management with ride-by-wire
- Powder-coated steel trellis frame
- WP APEX 43 front suspension
- Adjustable front compression and rebound damping
- Adjustable rear rebound damping and spring preload
- 320 mm front brake disc
- Four-piston radial front brake caliper
- 240 mm rear brake disc
- 520 X-Ring chain
- Adjustable 820 mm or 800 mm seat height
PRODUCT PDF RESOURCES ▾
Download official PDF resources for the 2026 KTM 390 DUKE, 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.