Aprilia Tuono 660 2021 vs. Kawasaki Z900 2019

The Aprilia Tuono 660 2021 and the Kawasaki Z900 2019 are both naked bikes that offer a sporty riding experience. However, there are several differences between the two models.

In terms of the engine and power, the Aprilia Tuono 660 2021 features an inline twin-cylinder engine with a displacement of 659cc. It produces 95 horsepower and 67 Nm of torque. On the other hand, the Kawasaki Z900 2019 is equipped with an inline four-cylinder engine with a displacement of 948cc. It delivers 125.4 horsepower and 98.6 Nm of torque. The Kawasaki Z900 has a more powerful engine compared to the Aprilia Tuono 660.

Both bikes have liquid cooling systems and fuel injection. They also have similar suspension setups, with telescopic forks at the front and a monoshock at the rear. The suspension on both models can be adjusted for preload and rebound. The Aprilia Tuono 660 has an aluminum swingarm, while the Kawasaki Z900 has an aluminum frame.

Aprilia Tuono 660 2021

When it comes to braking, both bikes have dual disc brakes at the front. However, the Aprilia Tuono 660 has larger 320mm discs compared to the 300mm discs on the Kawasaki Z900. Both bikes have four-piston calipers. The Kawasaki Z900 features petal technology for its brake discs.

In terms of advanced rider assistance systems, the Aprilia Tuono 660 comes with ABS, riding modes, launch control, quick shifter, traction control, and anti-wheelie control. However, some of these features may come at an additional cost. On the other hand, the Kawasaki Z900 only has ABS as a standard feature.

In terms of dimensions, the Aprilia Tuono 660 has a narrower front tire width of 120mm compared to the 120mm front tire on the Kawasaki Z900. Both bikes have the same rear tire width of 180mm. The Aprilia Tuono 660 has a shorter wheelbase of 1370mm compared to the 1450mm wheelbase of the Kawasaki Z900. The seat height of the Aprilia Tuono 660 is slightly higher at 820mm compared to the 795mm seat height of the Kawasaki Z900. The Aprilia Tuono 660 also has a lighter curb weight of 183kg with ABS, while the Kawasaki Z900 weighs 210kg with ABS.

Kawasaki Z900 2019

In terms of strengths, the Aprilia Tuono 660 offers an easy-to-use and sonorous engine, a well-designed appearance, sporty performance, good ergonomics, decent brakes, extensive electronics (although some may come at an additional cost), and a stable and precise chassis. On the other hand, the Kawasaki Z900 offers light and natural handling with high stability, a smooth engine with strong mid-range power, excellent feedback from the chassis, a comfortable riding position, and a fair price.

In terms of weaknesses, the Aprilia Tuono 660 is criticized for its price-to-performance ratio not being ideal and the additional cost of the IMU package. The Kawasaki Z900 has complaints about the low-mounted TFT screen, complicated menu operation, and modest visibility from the rearview mirrors.

Overall, the Aprilia Tuono 660 2021 and the Kawasaki Z900 2019 are both capable naked bikes with their own strengths and weaknesses. The choice between the two will depend on the rider's preferences and priorities, such as power, price, and advanced features.