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

The BMW M 1000 RR 2021 and the BMW S 1000 R 2021 are both high-performance motorcycles from BMW, but they have some key differences in terms of their specifications and strengths.

Starting with the technical specifications, both bikes have the same engine type, bore, stroke, fuel system, throttle bore, cylinders, valves per cylinder, cooling, and displacement. However, the BMW M 1000 RR has a higher engine power of 212 HP compared to the BMW S 1000 R's 165 HP. The M 1000 RR also has slightly lower torque at 113 Nm compared to the S 1000 R's 114 Nm. The compression ratio of the M 1000 RR is higher at 13.5, while the S 1000 R has a compression ratio of 12.5.

In terms of suspension, both bikes have upside-down telescopic forks at the front and swing arm suspension at the rear. The diameter of the front forks is the same at 45 mm, and both bikes have adjustable compression, preload, and rebound settings for the suspension.

BMW M 1000 RR 2021

The chassis of both bikes is made of aluminum, but the frame type differs slightly. The M 1000 RR has a twin-tube, load-bearing engine frame, while the S 1000 R has a twin-tube frame. The rake and trail measurements are also slightly different, with the M 1000 RR having a rake of 66.4 degrees and a trail of 99.8 mm, while the S 1000 R has a rake of 66 degrees and a trail of 96.3 mm.

Both bikes have double disk brakes at the front with a diameter of 320 mm and four pistons. The braking technology is radial for both models.

In terms of advanced rider assistance systems, both bikes have ABS and traction control. However, the M 1000 RR has additional features such as riding modes, launch control, ride by wire, and a quickshifter. The S 1000 R, on the other hand, has hill start assist, cornering ABS, ride by wire, and anti-wheelie as additional features.

Moving on to dimensions and weights, both bikes have the same front tire width of 120 mm and front tire diameter of 17 inches. However, the M 1000 RR has a wider rear tire at 200 mm compared to the S 1000 R's 190 mm. The wheelbase is slightly longer for the M 1000 RR at 1457 mm compared to the S 1000 R's 1450 mm. The seat height is also slightly higher for the M 1000 RR at 832 mm compared to the S 1000 R's 830 mm. The kerb weight is higher for the S 1000 R at 199 kg compared to the M 1000 RR's 192 kg. Both bikes have the same fuel tank capacity of 16.5 liters.

BMW S 1000 R 2021

In terms of strengths, the M 1000 RR is praised for its smooth overall package, strong brakes, precise chassis, and noble details. It has great responsiveness, a rev-happy engine, and a great torque curve. The transition from load to push mode is also said to be harmonious. On the other hand, the S 1000 R is praised for its powerful engine, good brakes, comfortable ergonomics, and high-performance optional extras. It is considered a great all-rounder.

However, both bikes have some weaknesses as well. The M 1000 RR is criticized for its high price package, which may not be customer-friendly but is sales-friendly. The footrests could also use more grip on the track, and a higher and harder seat option is desired. The S 1000 R's quickshifter is considered good but not perfect, and the sound is still a bit intrusive. Some riders also experience vibrations in the handlebars.

In conclusion, the BMW M 1000 RR 2021 and the BMW S 1000 R 2021 are both impressive motorcycles with their own strengths and weaknesses. The M 1000 RR offers a more powerful engine and additional advanced rider assistance systems, while the S 1000 R provides a comfortable riding experience and high-performance optional extras. Ultimately, the choice between the two will depend on the rider's preferences and priorities.