Kawasaki Z900 2017 vs. BMW S 1000 R 2021

The Kawasaki Z900 2017 and the BMW S 1000 R 2021 are both naked bikes with similar engine types, inline 4-cylinder engines, and liquid cooling systems. However, there are several notable differences between the two models.

In terms of engine power, the BMW S 1000 R 2021 has a significant advantage with 165 HP compared to the Kawasaki Z900 2017's 125.4 HP. This higher power output gives the BMW a more thrilling and exhilarating performance on the road.

Similarly, the torque of the BMW S 1000 R 2021 is also higher at 114 Nm compared to the Kawasaki Z900 2017's 98.6 Nm. This increased torque allows for better acceleration and overall performance.

Both bikes feature fuel injection systems and have 4 cylinders, ensuring smooth and efficient power delivery. Additionally, they both have upside-down telescopic forks for the front suspension and swing arm suspension with monoshock for the rear. However, the BMW S 1000 R 2021 offers more adjustability options for the suspension, including compression, preload, and rebound adjustments, compared to the Kawasaki Z900 2017's preload and rebound adjustments only.

Kawasaki Z900 2017

In terms of chassis, the BMW S 1000 R 2021 features an aluminum frame, which is lighter and more rigid compared to the steel frame of the Kawasaki Z900 2017. This results in improved handling and maneuverability for the BMW.

Both bikes have double disk brakes at the front with four pistons, but the BMW S 1000 R 2021 has larger diameter disks at 320 mm compared to the Kawasaki Z900 2017's 300 mm disks. The BMW also utilizes radial technology for its front brakes, providing enhanced braking performance.

When it comes to advanced rider assistance systems, the BMW S 1000 R 2021 offers a more comprehensive range of features, including ABS, hill start assist, riding modes, cornering ABS, ride by wire, traction control, and anti-wheelie. The Kawasaki Z900 2017, on the other hand, only comes with ABS.

In terms of dimensions and weights, both bikes have similar front tire widths and diameters. However, the BMW S 1000 R 2021 has a wider rear tire at 190 mm compared to the Kawasaki Z900 2017's 180 mm. The seat height of the BMW is also higher at 830 mm compared to the Kawasaki's 795 mm. Additionally, the BMW S 1000 R 2021 is slightly lighter with a kerb weight of 199 kg compared to the Kawasaki Z900 2017's 210 kg.

BMW S 1000 R 2021

In terms of strengths, the Kawasaki Z900 2017 is praised for its ingenious naked bike chassis, superb looks, and a responsive engine with a well-balanced torque. It is also considered to be a great intersection of performance, price, and practicality.

On the other hand, the BMW S 1000 R 2021 is commended for its powerful engine, good brakes, comfortable ergonomics, and a wide range of high-performance optional extras. It is also considered a great all-rounder with simple operation and impressive speed.

In terms of weaknesses, the Kawasaki Z900 2017 is criticized for its narrow knee angle, which may be uncomfortable for taller riders. On the other hand, the BMW S 1000 R 2021 is noted to have a quickshifter that is not perfect and a slightly intrusive sound. Some riders also experience vibrations in the handlebars.

Overall, the BMW S 1000 R 2021 offers a more powerful and technologically advanced package compared to the Kawasaki Z900 2017. However, the Kawasaki still holds its own with its attractive design, balanced performance, and practicality.