It's always recommended to consult official sources such as KTM's website or contact authorized KTM dealerships to get the most up-to-date and accurate information regarding the features, specifications, and known issues of the KTM Duke 250 BS6 version.
When it comes to the issue of heating, it's important to note that motorcycles, especially those with higher-performance engines, tend to generate heat during operation. To get a better understanding of the heating issue, you can refer to online motorcycle forums, owner reviews, or reach out to current owners of the KTM Duke 250 for their firsthand experiences.
Regarding the real mileage in the city, it can vary depending on various factors such as riding style, traffic conditions, maintenance, and terrain. Manufacturers usually provide an estimated mileage figure based on standard testing conditions, but real-world mileage can be different. Consulting user reviews or contacting current owners of the KTM Duke 250 can give you a better idea of the mileage you can expect in city riding conditions.