BMW S 1000 R 2021 vs. BMW R 1250 RS 2021

The BMW S 1000 R 2021 and the BMW R 1250 RS 2021 are both impressive motorcycles, but they have some key differences.

Starting with the engine, the S 1000 R features an in-line, 4-cylinder engine with a displacement of 999cc, producing 165 horsepower and 114 Nm of torque. On the other hand, the R 1250 RS has a boxer engine with a displacement of 1254cc, generating 136 horsepower and 143 Nm of torque. While the S 1000 R has a more powerful engine, the R 1250 RS offers a high-revving and agile riding experience.

In terms of transmission, the S 1000 R utilizes a chain drive, while the R 1250 RS uses a prop shaft. Both bikes have fuel injection systems for efficient performance.

BMW S 1000 R 2021

The suspension setup on the front of both bikes consists of an upside-down telescopic fork, but the S 1000 R has a travel of 120mm, while the R 1250 RS offers a greater travel of 140mm. The rear suspension on both bikes features a monoshock, but the R 1250 RS has a slightly higher travel of 140mm compared to the S 1000 R's 117mm. The S 1000 R also offers more adjustment options for the rear suspension, including compression, preload, and rebound.

In terms of chassis, the S 1000 R has an aluminum frame with a twin-tube design, while the R 1250 RS has a steel frame with a load-bearing engine design. Both bikes have double disk brakes on the front with a diameter of 320mm and four-piston calipers. They also feature advanced rider assistance systems such as ABS, riding modes, and ride-by-wire technology.

When it comes to dimensions and weights, the S 1000 R has a front tire width of 120mm and a rear tire width of 190mm, both with a diameter of 17 inches. It has a wheelbase of 1450mm and a seat height of 830mm. The bike weighs 199kg (with ABS) and has a fuel tank capacity of 16.5 liters. On the other hand, the R 1250 RS has a front tire width of 120mm and a rear tire width of 180mm, also with a diameter of 17 inches. It has a longer wheelbase of 1530mm and a slightly lower seat height of 820mm. The bike weighs 243kg (with ABS) and has a larger fuel tank capacity of 18 liters.

BMW R 1250 RS 2021

In terms of strengths, the S 1000 R is praised for its powerful engine, good brakes, comfortable ergonomics, and high-performance optional extras. It is also considered a great all-rounder with simple operation but impressive speed. On the other hand, the R 1250 RS is known for its high stability in long radii, agile and high-revving boxer engine, good looks, comfortable seating position, and extensive list of accessories. It also offers a great ESA chassis.

However, both bikes have their weaknesses. The S 1000 R's quickshifter is good but not perfect, and the sound can still be a bit intrusive. Some riders also experience vibrations in the handlebars. As for the R 1250 RS, its high weight can be noticeable in tight bends, and the windshield could be higher for better wind protection. Additionally, many features come at an extra cost, and some riders find the bike somewhat sluggish.

Overall, the BMW S 1000 R 2021 and the BMW R 1250 RS 2021 are both impressive motorcycles with their own strengths and weaknesses. The S 1000 R excels in power and performance, while the R 1250 RS offers a unique riding experience with its boxer engine and comfort features. Ultimately, the choice between the two would depend on the rider's preferences and priorities.