KTM 125 Duke has a fuel tank capacity of 13.4 liters and an estimated fuel efficiency of around 25-30 kmpl (kilometers per liter) under standard riding conditions. This means that the bike can travel around 335-402 kilometers on a full tank of fuel.

The KTM 125 Duke is a high-performance bike that is known for its power and agility. The bike's engine is a 124.7cc single-cylinder, liquid-cooled unit that delivers a maximum power output of 14.5 hp at 9,250 rpm and a peak torque of 12 Nm at 8,000 rpm. The bike's fuel efficiency is also impressive, with the bike capable of delivering a mileage of around 45-50 kmpl in city riding conditions, and up to 55 kmpl on highways. Overall, the KTM 125 Duke is an excellent choice for riders who want a powerful and efficient bike that is also easy to handle and maneuver.

The KTM 125 Duke is an entry-level naked sport bike that offers a thrilling and agile riding experience. The 125cc engine provides a decent power output of 14.5 bhp and 12 Nm of torque, which is great for city rides and some occasional highway cruising. The bike is lightweight, agile and easy to handle, making it perfect for new riders. The suspension and brakes offer excellent feedback and control. The riding position is upright and comfortable, and the digital instrument cluster provides all the necessary information. Overall, the KTM 125 Duke offers a fun and exciting riding experience, making it a great choice for beginners and experienced riders alike.