Ducati Streetfighter V4 S 2020 vs. Kawasaki Z900 2021

The Ducati Streetfighter V4 S 2020 and the Kawasaki Z900 2021 are both naked bikes with powerful engines and modern features. However, there are several differences between the two models.

Starting with the engines, the Ducati Streetfighter V4 S 2020 is equipped with a V4 engine that produces an impressive 208 HP of power and 123 Nm of torque. On the other hand, the Kawasaki Z900 2021 features an inline-four engine that delivers 125.4 HP of power and 98.6 Nm of torque. The Ducati clearly has a significant advantage in terms of power.

In terms of fuel system, both bikes use fuel injection. They also have liquid cooling systems to ensure optimal engine temperature. The Ducati has a larger displacement at 1103 ccm compared to the Kawasaki's 948 ccm.

Moving on to the suspension, both bikes feature upside-down telescopic forks at the front. However, the Ducati offers more adjustability with compression, preload, and rebound adjustments, while the Kawasaki only has preload and rebound adjustments. At the rear, the Ducati has a single swing arm suspension with compression, preload, and rebound adjustments, while the Kawasaki has a swing arm suspension with preload and rebound adjustments. The Ducati also boasts an aluminum suspension rear material, which may contribute to better performance and handling.

Ducati Streetfighter V4 S 2020

In terms of chassis, the Ducati features an aluminum monocoque frame, which is known for its lightweight and rigid construction. On the other hand, the Kawasaki has a steel double cradle frame.

Both bikes are equipped with double disk brakes at the front, but the Ducati has larger diameter disks at 330 mm compared to the Kawasaki's 300 mm. The Ducati also utilizes radial monoblock technology for its front brakes, which provides improved braking performance. The Kawasaki, on the other hand, utilizes petal technology for its front brakes.

In terms of advanced rider assistance systems, both bikes offer ABS, riding modes, and traction control. However, the Ducati goes a step further with additional features such as dynamic suspension, cornering ABS, launch control, ride by wire, and an anti-wheelie system. The Kawasaki lacks these additional features and is also missing a quickshifter option.

In terms of dimensions and weights, the Ducati has a slightly wider front tire at 120 mm compared to the Kawasaki's 120 mm. The rear tire width is also larger on the Ducati at 200 mm compared to the Kawasaki's 180 mm. The Ducati has a longer wheelbase at 1488 mm compared to the Kawasaki's 1450 mm. The seat height is higher on the Ducati at 845 mm compared to the Kawasaki's 795 mm. In terms of weight, the Ducati is lighter at 199 kg compared to the Kawasaki's 210 kg.

Kawasaki Z900 2021

Both bikes come equipped with LED headlights and TFT displays. The Kawasaki also features LED daytime running lights, giving it an added safety feature.

In terms of strengths, the Ducati Streetfighter V4 S 2020 has an electronics package at the absolute top level, a high-revving and brutally powerful engine, very agile handling, a surprisingly comfortable seating position even for tall riders, powerful brakes, a sporty and high-quality chassis, great aerodynamics, and a striking appearance. The Kawasaki Z900 2021, on the other hand, boasts a powerful four-cylinder engine, intuitive handling, good equipment, aggressive looks, and value for money.

As for weaknesses, the Ducati requires higher revs for optimal performance and can have a rough engine response in city traffic and everyday life. It also has tippy handling at low speeds and a strongly changing engine noise. The Kawasaki lacks a quickshifter option and falls behind competitors with 6-axis IMU technology.

In conclusion, while both the Ducati Streetfighter V4 S 2020 and the Kawasaki Z900 2021 are powerful naked bikes, the Ducati offers superior performance, advanced features, and a more premium riding experience. However, the Kawasaki provides good value for money and a solid overall package for riders who prioritize affordability and intuitive handling.