BMW S 1000 R 2021 vs. BMW S 1000 RR 2020

The BMW S 1000 R 2021 and the BMW S 1000 RR 2020 are both high-performance motorcycles from BMW, but they have some notable differences.

In terms of engine specifications, the S 1000 R 2021 is equipped with an inline four-cylinder engine with a displacement of 999cc. It produces 165 horsepower and 114 Nm of torque. On the other hand, the S 1000 RR 2020 also has an inline four-cylinder engine with the same displacement, but it delivers a higher power output of 207 horsepower and slightly less torque at 113 Nm. Both bikes have a bore and stroke of 80mm and 49.7mm, respectively, and use fuel injection as their fuel system.

When it comes to suspension, both bikes feature upside-down telescopic forks at the front and a swing arm with a monoshock at the rear. The front forks have a diameter of 45mm and offer adjustable compression, preload, and rebound settings. These suspension components provide excellent handling and stability for both models.

BMW S 1000 R 2021

In terms of chassis, both bikes have an aluminum frame, but the S 1000 RR 2020 has a twin-tube frame that also acts as a load-bearing engine. This design contributes to the bike's overall rigidity and enhances its performance on the racetrack. The S 1000 R 2021, on the other hand, has a standard twin-tube frame.

In terms of braking, both models are equipped with double disc brakes at the front with a diameter of 320mm and four-piston calipers. The brakes use radial technology, which provides excellent stopping power and precise control.

Both bikes come with advanced rider assistance systems, including ABS, riding modes, and traction control. However, the S 1000 RR 2020 has additional features such as launch control and a quickshifter, which enhance its performance on the racetrack.

In terms of dimensions and weights, both bikes have a front tire width of 120mm and a rear tire width of 190mm. They both have a 17-inch front and rear tire diameter. The S 1000 R 2021 has a slightly longer wheelbase of 1450mm compared to the S 1000 RR 2020, which has a wheelbase of 1441mm. The seat height of the S 1000 R 2021 is 830mm, while the S 1000 RR 2020 has a seat height of 824mm. Both bikes have a fuel tank capacity of 16.5 liters.

BMW S 1000 RR 2020

In terms of strengths, the S 1000 R 2021 is praised for its powerful engine, good brakes, comfortable ergonomics, and great all-rounder performance. It also offers high-priced but high-performance optional extras. On the other hand, the S 1000 RR 2020 is known for its very linear power delivery, wide rev range, and excellent Dynamic Damping Control (DDC) system. It has a harmonious overall package and performs well both on the road and on the racetrack.

As for weaknesses, the S 1000 R 2021 is criticized for its not perfect quickshifter and slightly intrusive sound. It also has some vibrations in the handlebars. On the other hand, the S 1000 RR 2020 is said to be a bit "characterless" compared to other bikes in its class and lags behind on the spec sheet in direct comparison.

Overall, both the BMW S 1000 R 2021 and the BMW S 1000 RR 2020 are impressive motorcycles with their own strengths and weaknesses. The S 1000 R 2021 is a versatile and powerful naked bike, while the S 1000 RR 2020 is a high-performance supersport bike that excels on the racetrack.