Kawasaki Z900 2021 vs. BMW S 1000 R 2017

The Kawasaki Z900 2021 and the BMW S 1000 R 2017 are both naked bikes with inline four-cylinder engines and liquid cooling. However, there are some notable differences between the two models.

In terms of power, the BMW S 1000 R 2017 has a clear advantage with 165 HP compared to the Kawasaki Z900 2021's 125.4 HP. The BMW also has a higher torque of 114 Nm compared to the Kawasaki's 98.6 Nm. This means that the BMW offers more power and acceleration, making it a more exciting and thrilling ride.

Both bikes have fuel injection systems and four cylinders, providing smooth and efficient performance. However, the Kawasaki Z900 2021 has a larger displacement of 948 ccm compared to the BMW S 1000 R 2017's 999 ccm. This larger displacement may contribute to the Kawasaki's slightly lower power output.

In terms of suspension, both bikes feature a telescopic fork front suspension and a monoshock rear suspension. However, the BMW S 1000 R 2017 has the advantage of a dynamic suspension system, which offers improved handling and comfort compared to the Kawasaki Z900 2021's standard suspension.

Kawasaki Z900 2021

The chassis of the BMW S 1000 R 2017 is made of aluminum, while the Kawasaki Z900 2021 has a steel frame. This may contribute to the BMW's slightly lower weight of 205 kg compared to the Kawasaki's 210 kg.

Both bikes have dual disc front brakes with four-piston calipers, providing excellent stopping power. However, the BMW S 1000 R 2017 has radial brakes, which offer improved braking performance compared to the Kawasaki Z900 2021's petal brakes.

In terms of dimensions, both bikes have a front tire width of 120 mm and a front tire diameter of 17 inches. However, the BMW S 1000 R 2017 has a wider rear tire of 190 mm compared to the Kawasaki Z900 2021's 180 mm. The BMW also has a slightly shorter wheelbase of 1439 mm compared to the Kawasaki's 1450 mm.

BMW S 1000 R 2017

In terms of seating position, the BMW S 1000 R 2017 has a slightly higher seat height of 814 mm compared to the Kawasaki Z900 2021's 795 mm. This may affect the comfort and ergonomics for different riders.

In terms of strengths, the Kawasaki Z900 2021 is praised for its powerful four-cylinder engine, intuitive handling, good equipment, aggressive appearance, and good value for money. On the other hand, the BMW S 1000 R 2017 is praised for its excellent gear shift assistant, powerful engine, fantastic sound, excellent maneuverability, wide range of equipment and accessory options, and powerful brakes. The BMW also has the advantage of a semi-active suspension system, which eliminates the need for manual adjustment.

In terms of weaknesses, the Kawasaki Z900 2021 lacks a quick shift option and is said to have competitors with more advanced electronic features. The BMW S 1000 R 2017 is criticized for its stock tires not being of the highest quality and its slightly inactive riding position on the racetrack.

Overall, the BMW S 1000 R 2017 offers more power, advanced features, and a wider range of options compared to the Kawasaki Z900 2021. However, the Kawasaki provides a good balance of performance, handling, and value for money. Ultimately, the choice between the two models will depend on the rider's preferences and priorities.