2025 KTM 390 Duke: common problems
The maker issued 5 service bulletins for this year. Details by component below, with sources.
Key figures
- Technical service bulletins (TSB)
- 5
Components owners complain about
| Component | Owner complaints | involving a crash | Technical service bulletins (TSB) |
|---|---|---|---|
| Electrical system | 0 | 0 | 2 |
| Service brakes | 0 | 0 | 1 |
| Structure | 0 | 0 | 1 |
| Wheels | 0 | 0 | 1 |
Comparison
What to check before buying
- Electrical system. Scan all modules, test the battery and alternator, inspect connectors near the impact zone.
- Service brakes. Pedal feel, ABS operation, leaks, discs and hoses.
- Structure. Rails, pillars, panel gaps, signs of pulling or welding.
- Wheels. Wheel runout, cracks, signs of a wheel strike.
Manufacturer service bulletins
Bulletin titles as filed with NHTSA.
- Due to an error during vehicle packaging (see Fig
1), there is a possibility that air has entered the master cylinder of the front brake system from the expansion tank (see Fig. 2). This can result in a spongy brake lever feel. Therefore, KTM North America, Inc. is…
- KTM North America, Inc
has determined that a defect which relates to motor vehicle safety exists with certain model motorcycles listed above. Engine vibrations may cause the side stand spring on forged side stands to break. A broken side…
- KTM North America, Inc
has determined that a defect which relates to motor vehicle safety exists with certain model motorcycles listed above pertaining to the engine control unit software. An issue with the originally installed engine…
- During quality inspections, it was found that some front wheel collars did not meet the specification
Therefore, the collars must be checked on all affected vehicles and replaced if necessary.
- To ensure the 2025 390 models listed above are performing correctly at the time of delivery, it is…
To ensure the 2025 390 models listed above are performing correctly at the time of delivery, it is necessary to perform an initialization run during the pre-delivery inspection (PDI). An overview of the steps necessary…
Other years of this model
Questions and answers
What are the most common problems with the 2025 KTM 390 Duke?
There are no owner complaints in the NHTSA data for this year; the data comes from 5 manufacturer service bulletins.
How many service bulletins (TSB) were issued for the 2025 KTM 390 Duke?
NHTSA lists 5 manufacturer service bulletins for this year. A bulletin tells dealers how to diagnose or fix a known issue; it is not a recall.
Should I buy a 2025 KTM 390 Duke from a US auction?
Owner complaints describe defects, not crash damage. Before bidding, check the components listed above and review the lot photos: VinWind builds a report of visible and hidden damage by VIN.
Other 2025 models
Read also
Sources: public NHTSA data (USA): service bulletins and owner complaints; YouTube: links to videos credited to their authors. Complaints are owner statements not verified by NHTSA, and describe defects rather than crash damage. Data updated 2026-11-04.