The Duke 390, Duke 690, and Duke 790 are all models from KTM's Duke series, but they differ in engine size and performance. The Duke 390 has a 373cc single-cylinder engine, the Duke 690 has a 693cc single-cylinder engine, and the Duke 790 has a 799cc parallel-twin engine. This results in varying power outputs and torque levels for each model. Additionally, the Duke 390 is more entry-level oriented, while the Duke 690 and Duke 790 are positioned as more powerful and performance-oriented options within the Duke lineup. **

If you are a new rider or someone looking for a more manageable bike, the 390 Duke would be a better option due to its smaller engine size and lighter weight. However, if you have some riding experience and are looking for more power and performance, the 790 Duke restricted could be a good choice. Consider your riding skills, experience, and preferences before making a decision between the two models. **

If you are a new rider or have limited experience, it may be better to start with the 390 Duke as it is a smaller and more manageable bike. The 390 Duke is also more affordable and easier to handle, making it a good choice for beginners. However, if you are confident in your riding abilities and want a more powerful bike, the 790 Duke with a restriction could be a good option as it offers more power and performance. Ultimately, the decision should be based on your comfort level and experience as a rider. **

If you are a new rider or looking for a more manageable bike, the 390 Duke would be a better option due to its smaller engine size and lighter weight. However, if you have some riding experience and are looking for more power and features, the 790 Duke with restricted power could be a good choice. It offers a more powerful engine and advanced technology, providing a more thrilling riding experience while still being manageable with the power restriction. Ultimately, the decision should be based on your riding experience, preferences, and intended use of the bike. **

The lifespan of a KTM 790 Duke can vary depending on how well it is maintained and how it is ridden. With proper care and maintenance, the KTM 790 Duke can last for many years and thousands of miles. However, like any motorcycle, its lifespan can be affected by factors such as riding conditions, maintenance practices, and the individual bike's history. Regular servicing and following the manufacturer's recommended maintenance schedule can help extend the lifespan of the KTM 790 Duke. **

Yes, the KTM Duke 790 can be restricted to 48 hp in order to comply with the A2 license regulations in certain countries. This can be achieved by installing a restrictor kit that limits the power output of the engine. Once the bike is restricted, it can be legally ridden by A2 license holders. It's important to note that the process of restricting a motorcycle should be done in accordance with local laws and regulations. **

The minimum size of the KTM Duke 790 is 2.12 feet (650 mm) in width. This compact size makes it easy to maneuver through city streets and traffic, while still providing a comfortable riding experience for the rider. The bike's slim profile and lightweight design contribute to its agility and handling capabilities, making it a popular choice for urban commuting and spirited rides. **

The choice between the Duke 790 and the Z900 ultimately depends on individual preferences and riding style. The Duke 790 is known for its nimble handling and agility, making it a great option for city riding and twisty roads. On the other hand, the Z900 offers a more powerful engine and a smoother ride, making it better suited for highway cruising and longer distances. Both bikes have their strengths, so it's important to test ride both to see which one better suits your needs and preferences. **