Ducati Monster 821 2017 vs. Ducati Streetfighter V4 S 2020

The Ducati Monster 821 2017 and the Ducati Streetfighter V4 S 2020 are both naked bikes from Ducati, but they have some significant differences in terms of specifications and features.

Starting with the engines, both bikes have V-type engines, but the Streetfighter V4 S has a more powerful engine with 208 HP compared to the Monster 821's 109 HP. The Streetfighter V4 S also has a higher torque of 123 Nm compared to the Monster 821's 87 Nm. The displacement of the Streetfighter V4 S is also larger at 1103 ccm, while the Monster 821 has a displacement of 821 ccm.

In terms of suspension, both bikes have upside-down telescopic forks at the front and monoshock absorbers at the rear. However, the Monster 821 has Sachs suspension components, while the Streetfighter V4 S features Öhlins suspension components. This indicates that the Streetfighter V4 S has higher quality and more advanced suspension.

Ducati Monster 821 2017

When it comes to the chassis, the Monster 821 has a steel frame, while the Streetfighter V4 S has an aluminum monocoque frame. The monocoque frame offers better rigidity and lighter weight, which contributes to the Streetfighter V4 S's agile handling.

In terms of brakes, both bikes have double disk brakes at the front with four-piston calipers and Brembo technology. This ensures powerful and reliable braking performance for both models.

In terms of dimensions and weights, the Streetfighter V4 S has a slightly larger wheelbase of 1488 mm compared to the Monster 821's 1480 mm. The seat height of the Streetfighter V4 S is also higher at 845 mm compared to the Monster 821's 785 mm. The dry weight of the Streetfighter V4 S is slightly lighter at 178 kg compared to the Monster 821's 179.5 kg. However, the curb weight of the Streetfighter V4 S is slightly heavier at 199 kg compared to the Monster 821's 205.5 kg. The fuel tank capacity of the Monster 821 is also larger at 17.5 liters compared to the Streetfighter V4 S's 16 liters.

Ducati Streetfighter V4 S 2020

In terms of strengths, the Monster 821 has a 25-year history of superb looks, a powerful and harmonious engine, a comfortable seating position, adjustable seat height, good workmanship, and a full range of electronics. On the other hand, the Streetfighter V4 S boasts 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 stunning looks.

However, both bikes have their weaknesses. The Monster 821's suspension fork is not adjustable, and its brakes can be a little too toxic. The Streetfighter V4 S, on the other hand, requires higher revs for fear in the saddle, has somewhat rough engine response in city traffic and everyday life, exhibits tippy handling at low speeds, and has strongly changing engine noise depending on speed and flap position.

In conclusion, the Ducati Streetfighter V4 S 2020 offers more power, advanced suspension, a lighter and more rigid chassis, and a higher seat height compared to the Ducati Monster 821 2017. However, the Monster 821 has a larger fuel tank capacity and is known for its comfortable seating position and full range of electronics. Both bikes have their strengths and weaknesses, so it ultimately depends on the rider's preferences and priorities.