The KTM Duke 390 is primarily designed as a street and sport-oriented motorcycle rather than a dedicated touring bike. However, with some modifications and additions, it can be suitable for shorter tours and occasional two-up riding.
Adding a comfort seat, tall windscreen, and installing a top case and panniers can enhance the Duke 390's touring capabilities and increase its practicality for carrying luggage. The comfort seat would provide better support and cushioning for both the rider and the pillion, while the tall windscreen would help deflect wind and reduce fatigue during longer rides.
Having a top case and panniers would offer additional storage space for carrying luggage, which is crucial for touring. However, it's important to note that the Duke 390 has a relatively small engine displacement and limited power compared to dedicated touring motorcycles. This means it may not have the same level of performance, comfort, and stability as larger touring bikes.
While the Duke 390 can handle shorter tours and occasional two-up riding, it may not provide the same level of comfort and long-distance capabilities as purpose-built touring motorcycles. If you plan on embarking on extensive and frequent tours with a passenger, you might want to consider motorcycles specifically designed for touring, which typically offer more power, larger fuel tanks, and greater comfort features.