BMW S 1000 RR 2011 vs. BMW M 1000 RR 2021

The BMW S 1000 RR model year 2011 and the BMW M 1000 RR model year 2021 both have an inline 4-cylinder engine with a displacement of 999cc. They have the same bore and stroke measurements of 80mm and 49.7mm respectively. However, there are several notable differences between the two models.

In terms of power, the BMW S 1000 RR 2011 produces 192 horsepower, while the BMW M 1000 RR 2021 has a more impressive power output of 212 horsepower. This increase in power is complemented by a higher torque rating of 113 Nm for the M 1000 RR, compared to 112 Nm for the S 1000 RR.

Both models have a compression ratio of 13, but the M 1000 RR has a slightly higher compression ratio of 13.5. This higher compression ratio contributes to the improved performance and responsiveness of the M 1000 RR.

In terms of suspension, both models feature a telescopic fork at the front and a swingarm at the rear. However, the M 1000 RR has an upgraded front suspension with an inverted telescopic fork, which provides better stability and handling.

BMW S 1000 RR 2011

Both models have an aluminum frame with a twin-tube design. However, the M 1000 RR also features a load-bearing engine as part of its frame, which further enhances the chassis rigidity and overall performance.

The braking system remains the same for both models, with dual disc brakes at the front and hydraulic actuation. The radial technology used in the front brakes ensures better stopping power and control.

In terms of dimensions, the M 1000 RR has a slightly wider rear tire, measuring 200mm compared to the 190mm tire on the S 1000 RR. The M 1000 RR also has a slightly longer wheelbase of 1457mm, compared to 1432mm for the S 1000 RR. The seat height is slightly higher for the M 1000 RR at 832mm, compared to 820mm for the S 1000 RR.

In terms of weight, the M 1000 RR is lighter with a curb weight of 192kg, compared to 207kg for the S 1000 RR. This weight reduction contributes to the improved performance and handling of the M 1000 RR.

BMW M 1000 RR 2021

Both models have a fuel tank capacity of around 16.5-17.5 liters.

In terms of strengths, the S 1000 RR 2011 is praised for its optimized torque curve, strong engine, good traction, and seamless gear shifting assistance. On the other hand, the M 1000 RR 2021 is praised for its smooth overall package, strong brakes, precise chassis, and luxurious details. It also has a responsive engine with a good torque curve and a seamless transition from load mode to push mode.

As for weaknesses, the S 1000 RR 2011 is criticized for its tiring acceleration load. The M 1000 RR 2021, on the other hand, has a higher price tag that may not be favorable to customers. Some riders also feel that the foot pegs could have better grip on the track, and there is a desire for a higher and firmer seat option.

Overall, the BMW M 1000 RR 2021 offers several improvements over the S 1000 RR 2011, including more power, improved suspension, a load-bearing engine frame, and a lighter weight. However, it comes at a higher price and has some minor gripes regarding foot pegs and seat options.