Aprilia RS 660 2021 vs. BMW S 1000 RR 2017

The Aprilia RS 660 2021 and the BMW S 1000 RR 2017 are both supersport motorcycles that offer powerful performance and advanced features.

In terms of the engine and drivetrain, the Aprilia RS 660 2021 has a parallel twin engine with a displacement of 659cc, producing 100 HP of power and 67 Nm of torque. It has a 13.5 compression ratio and features 4 valves per cylinder. On the other hand, the BMW S 1000 RR 2017 has an inline-four engine with a displacement of 999cc, producing 199 HP of power and 113 Nm of torque. It has a 13 compression ratio and also features 4 valves per cylinder. Both motorcycles have a similar suspension setup with telescopic front forks and a swingarm rear suspension.

In terms of the chassis, both motorcycles have an aluminum frame. However, the Aprilia RS 660 2021 has a motor-supporting frame, while the BMW S 1000 RR 2017 has a twin-tube frame. This difference in frame design may result in variations in handling characteristics and overall rigidity.

Aprilia RS 660 2021

When it comes to braking, both motorcycles have dual disc brakes at the front. The Aprilia RS 660 2021 features radial technology for its front brakes, which may provide improved braking performance. The BMW S 1000 RR 2017 also has radial front brakes but has been reported to experience brake fade under high loads on the track.

In terms of dimensions and weights, the Aprilia RS 660 2021 has a front tire width of 120 mm and a rear tire width of 180 mm. It has a wheelbase of 1370 mm and a seat height of 820 mm. The bike weighs 183 kg with ABS and has a fuel tank capacity of 15 liters. On the other hand, the BMW S 1000 RR 2017 has a front tire width of 120 mm and a rear tire width of 190 mm. It has a longer wheelbase of 1438 mm and a slightly lower seat height of 815 mm. The bike weighs 208 kg with ABS and has a larger fuel tank capacity of 17.5 liters.

BMW S 1000 RR 2017

In terms of strengths, the Aprilia RS 660 2021 is praised for its powerful engine, extensive electronic package, sporty chassis, pleasant sound, reduced weight, and sporty appearance. The BMW S 1000 RR 2017 is praised for its strong engine that is both powerful and easy to control, comfortable seating position even for taller riders, and a good chassis for both road and track use.

In terms of weaknesses, the Aprilia RS 660 2021 is criticized for its less legible tachometer. The BMW S 1000 RR 2017 has been reported to experience brake fade under high loads on the track, and some riders feel that its overall riding quality is not as good as expected for racing purposes.

In conclusion, both the Aprilia RS 660 2021 and the BMW S 1000 RR 2017 are high-performance supersport motorcycles with their own strengths and weaknesses. The Aprilia offers a powerful engine and advanced electronics, while the BMW provides a strong engine and a comfortable riding position. Ultimately, the choice between the two will depend on the rider's preferences and priorities.