The KTM Duke 390 is a good motorcycle that’s fun and capable but has had some reliability issues. For years, owners have complained of a variety of minor and major problems, including the need for extensive repairs. The debate within the motorcycle community has been quite intense about whether the Duke 390 is ready for daily riding or if enthusiasts are willing to grapple with the potential problems. The bike's performance and features outweigh the concerns for reliability, say some, while others believe the issues are simply happening too often and are too expensive to avoid. It frequently veers into topics like build quality, maintenance, or just owning a machine in general.