KTM 790 Duke 2018 vs. Aprilia Tuono 660 2021

The KTM 790 Duke 2018 and the Aprilia Tuono 660 2021 are both naked bikes with similar engine configurations, as they both have inline twin-cylinder engines with liquid cooling. However, there are some notable differences between the two models.

In terms of power, the KTM 790 Duke 2018 has a higher horsepower rating, with 105 HP compared to the Aprilia Tuono 660 2021's 95 HP. This gives the KTM a slight advantage in terms of acceleration and top speed.

Both bikes feature fuel injection systems and have two cylinders. They also have similar suspension setups, with telescopic forks at the front and swingarm suspension at the rear. However, there are some differences in the suspension components. The KTM 790 Duke 2018 features WP suspension, while the Aprilia Tuono 660 2021 has Kayaba suspension. Both bikes have adjustable rear suspension, but the Aprilia also offers adjustable rebound.

In terms of chassis, the KTM 790 Duke 2018 has a chromoly frame, while the Aprilia Tuono 660 2021 has an aluminum frame. Both frames are designed to provide stability and precise handling.

KTM 790 Duke 2018

When it comes to braking, both bikes have dual disc brakes at the front with four-piston calipers. The KTM 790 Duke 2018 has slightly smaller brake discs, with a diameter of 300 mm compared to the Aprilia Tuono 660 2021's 320 mm discs. Both bikes feature radial brake technology, which provides improved braking performance.

In terms of advanced rider assistance systems, both bikes offer ABS, riding modes, and traction control. The Aprilia Tuono 660 2021 has additional features such as launch control, cruise control, quick shifter, and anti-wheelie control. These features are available at an additional cost.

In terms of dimensions and weights, both bikes have similar tire widths and diameters, with 120 mm and 17-inch tires at the front, and 180 mm and 17-inch tires at the rear. The KTM 790 Duke 2018 has a longer wheelbase, measuring 1475 mm compared to the Aprilia Tuono 660 2021's 1370 mm. The seat height is also slightly higher on the KTM, measuring 825 mm compared to the Aprilia's 820 mm. Both bikes have a dry weight of 169 kg.

Aprilia Tuono 660 2021

In terms of equipment, the KTM 790 Duke 2018 features an adjustable windscreen, while the Aprilia Tuono 660 2021 comes with LED headlights.

In terms of strengths, the KTM 790 Duke 2018 offers a high-revving engine with powerful acceleration, an optimized chassis for sporty riding, fantastic sound even with the stock exhaust, and a comfortable seating position. On the other hand, the Aprilia Tuono 660 2021 has an easy-to-use and good-sounding engine, a well-executed design, sporty handling, good ergonomics, decent brakes, and extensive electronics (although some features come at an additional cost).

In terms of weaknesses, the KTM 790 Duke 2018 can be difficult to handle at low revs, is not ideal for city riding, and has complicated switches on the handlebar. Additionally, there have been reports of oil leaks in the engine block of many 790 Dukes. The Aprilia Tuono 660 2021 has a questionable price-to-performance ratio, and some of its advanced features come at an additional cost.

Overall, both the KTM 790 Duke 2018 and the Aprilia Tuono 660 2021 are capable naked bikes with their own strengths and weaknesses. The KTM offers more power and a comfortable seating position, while the Aprilia has a well-rounded package with sporty handling and extensive electronics. Ultimately, the choice between the two will depend on the rider's preferences and priorities.