BMW S 1000 RR 2014 vs. Aprilia RS 660 2021

When comparing the BMW S 1000 RR 2014 and the Aprilia RS 660 2021, it is important to consider their technical specifications, strengths, and weaknesses.

In terms of engine and drive train, both motorcycles have in-line engines. The BMW S 1000 RR has a larger displacement of 999cc compared to the Aprilia RS 660's 659cc. The BMW S 1000 RR also has a higher engine power of 192 HP compared to the Aprilia RS 660's 100 HP. However, the Aprilia RS 660 has a slightly higher torque of 67 Nm compared to the BMW S 1000 RR's 112 Nm. Both motorcycles have a compression ratio of 13, but the Aprilia RS 660 has a slightly larger bore of 81mm compared to the BMW S 1000 RR's 80mm. The stroke of the Aprilia RS 660 is also larger at 63.93mm compared to the BMW S 1000 RR's 49.7mm. The BMW S 1000 RR has four cylinders, while the Aprilia RS 660 has two cylinders.

In terms of suspension, both motorcycles have a swing arm rear suspension. However, the BMW S 1000 RR has a telescopic fork front suspension, while the Aprilia RS 660 has an upside-down telescopic fork front suspension.

Both motorcycles have aluminum frames, but the BMW S 1000 RR has a twin-tube frame type, while the Aprilia RS 660 has a load-bearing engine frame type.

BMW S 1000 RR 2014

In terms of brakes, both motorcycles have double disk front brakes with radial technology.

In terms of dimensions and weights, the BMW S 1000 RR has a larger wheelbase of 1432mm compared to the Aprilia RS 660's 1370mm. Both motorcycles have a seat height of 820mm. The BMW S 1000 RR has a higher kerb weight of 207kg compared to the Aprilia RS 660's 183kg. The BMW S 1000 RR also has a larger fuel tank capacity of 17.5 liters compared to the Aprilia RS 660's 15 liters.

Considering the strengths of the BMW S 1000 RR 2014, it has a powerful engine, a superior electronics package, and a superb shift assistant. It is also versatile for both track and road use and despite its high performance, it is easy to ride.

Aprilia RS 660 2021

On the other hand, the strengths of the Aprilia RS 660 2021 include a powerful engine, an extensive electronics package, a sporty chassis, a nice sound, low weight, and a sporty look.

However, the BMW S 1000 RR 2014 does have some weaknesses. In the fully equipped version, the price can be quite high and stability can be a bit tricky. Additionally, packages subject to surcharges are put together with a focus on profit maximization rather than customer benefits.

The Aprilia RS 660 2021 has a weakness of having a poorly readable rev counter.

In conclusion, the BMW S 1000 RR 2014 and the Aprilia RS 660 2021 both have their own strengths and weaknesses. The BMW S 1000 RR offers a more powerful engine and a versatile riding experience, while the Aprilia RS 660 provides a sporty look and low weight. Ultimately, the choice between the two motorcycles will depend on the rider's preferences and priorities.