BMW S 1000 R 2015 vs. Kawasaki Z900 2021

The BMW S 1000 R 2015 and the Kawasaki Z900 2021 are both naked bikes with powerful inline-four engines. The BMW S 1000 R 2015 boasts a 160 HP engine, while the Kawasaki Z900 2021 has a slightly lower output of 125.4 HP. Both bikes have a torquey performance, with the BMW S 1000 R 2015 producing 112 Nm of torque and the Kawasaki Z900 2021 generating 98.6 Nm.

In terms of suspension, both bikes feature a telescopic fork at the front and a swingarm at the rear. They are equipped with monoshock rear shock absorbers, providing a comfortable ride and good handling. However, the BMW S 1000 R 2015 offers the additional benefit of dynamic suspension, enhancing the overall riding experience.

When it comes to the chassis, the BMW S 1000 R 2015 features an aluminum frame, while the Kawasaki Z900 2021 has a steel frame. The aluminum frame of the BMW S 1000 R 2015 provides a lightweight and rigid structure, contributing to its agile handling. On the other hand, the steel frame of the Kawasaki Z900 2021 offers durability and stability.

BMW S 1000 R 2015

Both bikes are equipped with dual disc brakes at the front, with four-piston calipers providing strong stopping power. The BMW S 1000 R 2015 utilizes radial brake technology, while the Kawasaki Z900 2021 features petal brake technology. Both braking systems offer excellent performance and reliability.

In terms of assistance systems, the BMW S 1000 R 2015 offers advanced rider aids such as dynamic suspension. On the other hand, the Kawasaki Z900 2021 comes with ABS, riding modes, ride-by-wire, and traction control, providing enhanced safety and control.

In terms of dimensions and weights, both bikes have a similar front tire width of 120 mm and a 17-inch front tire diameter. However, the BMW S 1000 R 2015 has a wider rear tire width of 190 mm compared to the 180 mm of the Kawasaki Z900 2021. The BMW S 1000 R 2015 has a slightly shorter wheelbase of 1439 mm compared to the 1450 mm of the Kawasaki Z900 2021. The seat height of the BMW S 1000 R 2015 is 814 mm, while the Kawasaki Z900 2021 has a lower seat height of 795 mm. In terms of weight, the BMW S 1000 R 2015 has a curb weight of 207 kg with ABS, while the Kawasaki Z900 2021 weighs slightly more at 210 kg with ABS.

Kawasaki Z900 2021

In terms of strengths, the BMW S 1000 R 2015 offers a powerful and controllable engine, strong braking system, and a relatively comfortable seating position. On the other hand, the Kawasaki Z900 2021 boasts a powerful four-cylinder engine, intuitive handling, good equipment, aggressive styling, and a good value for money.

However, the BMW S 1000 R 2015 has some weaknesses, including expensive optional extras, a stiff chassis, and vibrations in the handlebars. The Kawasaki Z900 2021, on the other hand, lacks a quick-shifter option and some competitors offer electronically adjustable front suspension with a 6-axis IMU.

Overall, both the BMW S 1000 R 2015 and the Kawasaki Z900 2021 are impressive naked bikes with their own unique strengths and weaknesses. It ultimately comes down to personal preference and priorities when choosing between the two.