The top speed of the KTM Duke 250 is approximately 148 km/h, as indicated by the specifications. In real-world testing, it has been reported to achieve a top speed of around 155 km/h, showcasing its stability and performance even at higher speeds[5).

The mileage of the KTM 250 Duke varies slightly depending on the source and riding conditions. According to ARAI claims, the mileage is 30.08 kmpl. However, owner-reported mileage suggests it averages around 32 kmpl. In real-world testing, the bike achieved a fuel efficiency of 39.66 kmpl on the highway and 29.43 kmpl in city conditions.

The KTM Duke 200 is prone to several common issues. One of the most significant problems is the low oil pressure, often caused by a faulty clutch side gasket that does not seal properly, leading to oil leaks and reduced pressure. Replacing this gasket and ensuring it is properly sealed can resolve this issue. Another common problem is the leaking of the stator wire socket rubber, which can be fixed by resealing the area with a gasket maker. Additionally, wiring harness issues can cause various problems, including starting difficulties and error codes, which may require repairs or replacements. Starting problems, sometimes accompanied by a clicking sound, can be due to low voltage issues, often related to the stator coil. Regular maintenance such as changing the oil, replacing the fuel filter, and adjusting the chain can also help mitigate these problems. Furthermore, installing a voltmeter can help monitor the battery voltage and prevent low-voltage-related issues.

The on-road price of the KTM 250 Duke in India, as of the latest updates, starts at around Rs. 2,61,607 in Delhi, which includes the ex-showroom price of Rs. 2,27,707, RTO charges of Rs. 19,747, and insurance charges of Rs. 14,153. This pricing may vary slightly depending on the city and local taxes[5).