BMW S 1000 R 2021 vs. BMW F 900 R 2021

The BMW S 1000 R 2021 and the BMW F 900 R 2021 are both naked bikes from BMW, but they have some key differences in terms of technical specifications and strengths.

Starting with the technical specifications, the BMW S 1000 R 2021 is equipped with a more powerful engine compared to the BMW F 900 R 2021. It has an in-line, 4-cylinder engine with a displacement of 999cc, producing 165 HP of power and 114 Nm of torque. On the other hand, the BMW F 900 R 2021 has an in-line, 2-cylinder engine with a displacement of 895cc, producing 105 HP of power and 92 Nm of torque.

In terms of suspension, both bikes have upside-down telescopic forks at the front and swing arm suspension at the rear. However, the BMW S 1000 R 2021 offers more adjustment options for the rear suspension, including compression, preload, and rebound adjustments, while the BMW F 900 R 2021 only offers preload and rebound adjustments.

The chassis of the BMW S 1000 R 2021 is made of aluminum, while the BMW F 900 R 2021 has a steel frame. The frame type for both bikes is twin tube, but the BMW F 900 R 2021 has a load-bearing engine, which can contribute to its handling characteristics.

BMW S 1000 R 2021

Both bikes have double disk brakes with a diameter of 320mm at the front, equipped with four-piston calipers and radial technology. This ensures efficient braking performance for both models.

In terms of advanced rider assistance systems, both bikes are equipped with ABS. However, the BMW S 1000 R 2021 offers more advanced features such as hill start assist, riding modes, cornering ABS, ride by wire, traction control, and anti-wheelie. The BMW F 900 R 2021, on the other hand, offers ABS and anti-slipping control as its advanced rider assistance systems.

Moving on to dimensions and weights, the BMW S 1000 R 2021 has a front tire width of 120mm and a rear tire width of 190mm, while the BMW F 900 R 2021 has a front tire width of 120mm and a rear tire width of 180mm. Both bikes have a 17-inch front and rear tire diameter. The wheelbase of the BMW S 1000 R 2021 is 1450mm, while the BMW F 900 R 2021 has a longer wheelbase of 1518mm. The seat height of the BMW S 1000 R 2021 is 830mm, while the BMW F 900 R 2021 has a slightly lower seat height of 815mm. The kerb weight of the BMW S 1000 R 2021 is 199kg, while the BMW F 900 R 2021 is slightly heavier at 211kg. The fuel tank capacity of the BMW S 1000 R 2021 is 16.5 liters, while the BMW F 900 R 2021 has a smaller fuel tank capacity of 13 liters.

BMW F 900 R 2021

In terms of strengths, the BMW S 1000 R 2021 is praised for its powerful engine, good brakes, comfortable ergonomics, and a wide range of high-priced but high-performance optional extras. It is considered a great all-rounder with simple operation but still very fast.

On the other hand, the BMW F 900 R 2021 is commended for its great cockpit and functional connectivity, logical operation of extensive electronics, and very accessible yet casual handling. It is described as a motorcycle that can be ridden bland and reserved, but also wild and sporty when needed. The seating position is pleasant, and there is a wide choice of equipment and configuration options. Additionally, the suspension allows for a wide range of use, providing both comfort and direct, precise handling.

However, both bikes have their weaknesses. The BMW S 1000 R 2021 is criticized for its quickshifter, which is good but not perfect, and the sound can still be a bit intrusive. It also has some vibrations in the handlebars. On the other hand, the BMW F 900 R 2021 has a gearstick that is a little stiff, both with and without the quickshifter. The engine runs a little rough and lacks elegance at the top, and there is a poor splash guard at the rear.

Overall, the BMW S 1000 R 2021 and the BMW F 900 R 2021 are both capable naked bikes with their own strengths and weaknesses. The BMW S 1000 R 2021 offers more power and advanced rider assistance systems, while the BMW F 900 R 2021 focuses on functional connectivity and a wide range of handling capabilities.