The KTM 390 Adventure comes with a powerful and advanced 373 cc single-cylinder engine that delivers exceptional performance. The engine is liquid-cooled and features fuel injection, producing a peak power of 43 horsepower and a maximum torque of 37 Nm. The engine is mated to a 6-speed gearbox, offering smooth and precise gear changes. The bike's advanced features such as ride-by-wire throttle, slipper clutch, and quick shifter enhance the engine's performance and offer a thrilling riding experience. Overall, the KTM 390 Adventure's engine is one of its biggest highlights, delivering exceptional power, performance, and reliability.

The KTM 390 Adventure is designed to offer an excellent riding experience, whether on the road or off-road. The bike comes equipped with advanced features such as a powerful 373 cc engine, adjustable suspension system, and advanced traction control system, making it a joy to ride in any terrain. The bike's upright riding position and comfortable seat provide a comfortable riding experience, while the bike's lightweight and nimble handling make it easy to maneuver through tight corners and tricky terrain. Overall, the KTM 390 Adventure offers a thrilling and exhilarating riding experience that is sure to impress adventure riders.

The KTM 390 Adventure is a high-performance adventure bike that comes with a powerful 373 cc engine. The bike's fuel efficiency is not the main focus, but it still offers decent mileage figures for an adventure bike. As per KTM's official website, the bike is claimed to offer a mileage figure of around 25-30 km/l. However, actual mileage figures may vary depending on various factors such as riding style, road conditions, and maintenance. Overall, the KTM 390 Adventure's mileage figures are not exceptional, but they are decent for an adventure bike that comes with a powerful engine and advanced features.