Harley-Davidson Sportster S RH1250S 2021 vs. BMW S 1000 R 2021

When comparing the Harley-Davidson Sportster S RH1250S 2021 and the BMW S 1000 R 2021, there are several key differences to consider.

Starting with the engines, the Sportster S RH1250S is equipped with a V-twin engine, while the S 1000 R has an inline-four engine. The BMW offers more power with 165 HP compared to the Sportster's 122 HP. However, the Sportster has a higher torque rating of 125 Nm compared to the S 1000 R's 114 Nm. Both bikes have fuel injection systems and liquid cooling.

In terms of suspension, both bikes feature upside-down telescopic forks in the front and swing arm suspension with monoshocks in the rear. Both also offer adjustable compression, preload, and rebound settings for the suspension.

Harley-Davidson Sportster S RH1250S 2021

The chassis of the Sportster S RH1250S is made of steel, while the S 1000 R features an aluminum frame. The Sportster has a tubular, load-bearing engine frame, while the BMW has a twin-tube frame.

Braking systems on both bikes are similar, with both featuring double-disc front brakes with four-piston calipers. The Sportster utilizes a radial, monoblock technology for its front brakes, while the S 1000 R uses radial technology.

In terms of rider assistance systems, both bikes offer ABS, riding modes, cornering ABS, ride by wire, and traction control. The S 1000 R also includes hill start assist and anti-wheelie control. The Sportster S RH1250S has the added feature of cruise control.

When it comes to dimensions and weights, the Sportster has a wider front tire at 160 mm compared to the S 1000 R's 120 mm. The Sportster also has a larger front tire diameter at 17 inches, while the S 1000 R has a larger rear tire width at 190 mm. The wheelbase of the Sportster is longer at 1520 mm compared to the S 1000 R's 1450 mm. The seat height of the Sportster is lower at 755 mm, while the S 1000 R has a higher seat height at 830 mm. The Sportster is also heavier with a kerb weight of 228 kg compared to the S 1000 R's 199 kg. The fuel tank capacity of the Sportster is 11.8 liters, while the S 1000 R has a larger capacity at 16.5 liters.

BMW S 1000 R 2021

In terms of strengths, the Sportster S RH1250S offers a powerful and refined engine, along with excellent brakes for a single-disc system. It also comes with a full electronics package, including cornering ABS and lean angle-dependent traction control. On the other hand, the S 1000 R boasts a powerful engine, good brakes, comfortable ergonomics, and the option for high-performance extras, although at a higher price point. It is also considered a great all-rounder.

However, the Sportster S RH1250S does have some weaknesses, including a chassis that is quite hard and a turn-in behavior that can be somewhat unwilling due to the wide front tire. The S 1000 R has some minor drawbacks as well, such as a quickshifter that is not perfect and some vibrations in the handlebars.

In conclusion, the Harley-Davidson Sportster S RH1250S 2021 and the BMW S 1000 R 2021 are both powerful naked bikes with their own strengths and weaknesses. The Sportster offers a refined engine and a full electronics package, while the S 1000 R provides a higher power output and comfortable ergonomics. Ultimately, the choice between the two will depend on the rider's preferences and priorities.