KTM 390 Duke 2015 vs. KTM 790 Duke 2018

The KTM 390 Duke 2015 and the KTM 790 Duke 2018 are both naked bikes from the same manufacturer, but they have several differences in terms of technical specifications and performance.

Starting with the engine and drive train, the KTM 390 Duke 2015 is equipped with a single-cylinder engine that produces 44 horsepower and has a displacement of 373.2cc. On the other hand, the KTM 790 Duke 2018 features a two-cylinder engine with a higher power output of 105 horsepower and a displacement of 799cc. This means that the 790 Duke offers more power and acceleration compared to the 390 Duke.

Both bikes have upside-down telescopic forks for the front suspension, which are branded as WP. The rear suspension also features WP branding on both models. The chassis of both bikes is made of chromium-molybdenum and has a tubular frame type, ensuring stability and durability.

KTM 390 Duke 2015

In terms of braking, the KTM 390 Duke 2015 has a single disk front brake with four pistons and radial technology. On the other hand, the KTM 790 Duke 2018 is equipped with double disk front brakes with four pistons and radial technology. This means that the 790 Duke offers better braking performance compared to the 390 Duke.

When it comes to dimensions and weights, the KTM 390 Duke 2015 has a front tire width of 110mm and a rear tire width of 150mm. The front and rear tire diameters are both 17 inches. The wheelbase is 1367mm, and the seat height is 800mm. The fuel tank capacity is 11 liters. On the other hand, the KTM 790 Duke 2018 has a front tire width of 120mm and a rear tire width of 180mm. The front and rear tire diameters are also 17 inches. The wheelbase is longer at 1475mm, and the seat height is higher at 825mm. The fuel tank capacity is larger at 14 liters.

KTM 790 Duke 2018

Now, let's discuss the strengths and weaknesses of each model. The KTM 390 Duke 2015 is praised for its anti-hopping clutch, pleasant performance, compact geometry, and low weight. However, it is noted that taller riders may find the bike a little tight.

On the other hand, the KTM 790 Duke 2018 is praised for its lively, high-revving engine with powerful acceleration, optimally tuned chassis for sporty riding, and awesome sound even with the series muffler. It also offers many electronic gimmicks and functions, including an extremely precise quickshifter that makes fast riding easier. Additionally, it provides a comfortable seating position. However, some riders have reported rough handling at low revs and have found it to be a bit difficult to handle in city traffic. There have also been reports of oil leaks at the engine block on many 790 Dukes. Furthermore, some riders have found the switches on the handlebars to be fiddly-looking.

In conclusion, the KTM 390 Duke 2015 and the KTM 790 Duke 2018 have significant differences in terms of engine power, braking performance, dimensions, and weights. While the 390 Duke offers a more compact and lightweight option with pleasant performance, the 790 Duke provides a more powerful and sporty riding experience with additional electronic features. However, it is important to consider the reported weaknesses of each model before making a decision.