How does the fuel tank of the KTM Duke 390 affect its design and performance?

The fuel tank of the KTM Duke 390 has a capacity of 15 liters, which is relatively large for a bike of its size. The fuel tank's design complements the bike's sharp and angular lines, giving it a sleek and aggressive appearance. The larger fuel tank capacity allows for longer rides without the need for frequent refueling stops, which adds to the bike's practicality and convenience.