KTM 390 Duke 2021 vs. KTM 790 Duke 2020

When comparing the KTM 390 Duke 2021 and the KTM 790 Duke 2020, there are several notable differences to consider.

Starting with the engine and drive train, the KTM 390 Duke 2021 is equipped with a single-cylinder engine that produces 44 horsepower, while the KTM 790 Duke 2020 features a two-cylinder engine with 105 horsepower. This means that the 790 Duke has significantly more power and is better suited for riders who prefer a more aggressive and high-performance experience.

Both bikes have fuel injection systems and liquid cooling, ensuring efficient and reliable operation. The KTM 390 Duke has a displacement of 373.2ccm, while the 790 Duke has a larger displacement of 799ccm.

In terms of suspension, both models feature upside-down telescopic forks from WP, providing excellent handling and stability. The chassis of both bikes is made of chromium-molybdenum and has a tubular frame design, offering durability and strength.

KTM 390 Duke 2021

When it comes to braking, the KTM 390 Duke 2021 has a single disk front brake with a diameter of 320mm and four pistons, while the KTM 790 Duke 2020 has double disk front brakes with a diameter of 300mm and four pistons. Both models utilize radial technology for enhanced braking performance.

In terms of rider assistance systems, the KTM 390 Duke 2021 is equipped with ABS, while the KTM 790 Duke 2020 offers additional features such as riding modes and traction control. This makes the 790 Duke more advanced in terms of electronic aids and provides a more customizable riding experience.

In terms of dimensions and weights, the KTM 390 Duke 2021 has a front tire width of 110mm and a rear tire width of 150mm, with both tires having a diameter of 17 inches. The wheelbase is 1367mm, and the seat height is 830mm. The dry weight of the bike, including ABS, is 149kg, and the fuel tank capacity is 13.4 liters.

On the other hand, the KTM 790 Duke 2020 has a front tire width of 120mm and a rear tire width of 180mm, with both tires also having a diameter of 17 inches. The wheelbase is longer at 1475mm, and the seat height is slightly lower at 825mm. The dry weight, including ABS, is 169kg, and the fuel tank capacity is 14 liters.

In terms of strengths, the KTM 390 Duke 2021 offers typical Duke ergonomics that are suitable for taller riders, extremely agile handling, a sporty engine with great handling, a modern TFT display with smartphone connectivity, and a top price-performance ratio for an A2 motorbike.

KTM 790 Duke 2020

The KTM 790 Duke 2020 boasts a high-revving two-cylinder engine, a quickshifter as standard, a great chassis set-up, playful handling, a high-quality electronics package, a TFT display, and a good price/performance ratio.

However, the KTM 390 Duke 2021 does have some weaknesses, including a chassis that is tuned a little too soft and brakes with a slightly spongy pressure point.

On the other hand, the KTM 790 Duke 2020 has the weakness of only having rear suspension spring preload adjustability.

In summary, the KTM 390 Duke 2021 and the KTM 790 Duke 2020 are both impressive naked bikes with their own unique strengths and weaknesses. The 390 Duke is more suitable for riders who prioritize agility and a lower power output, while the 790 Duke offers a more powerful engine and advanced electronic features for riders seeking a high-performance experience.