Aprilia Tuono 660 2021 vs. Kawasaki Z900 2019

The Aprilia Tuono 660 2021 and the Kawasaki Z900 2019 are both naked bikes that offer impressive performance and features. However, there are some notable differences between the two models.

In terms of engine specifications, the Aprilia Tuono 660 2021 is equipped with an in-line crankpin offset engine with a displacement of 659cc. It delivers a power output of 95 HP and a torque of 67 Nm. On the other hand, the Kawasaki Z900 2019 features an in-line engine with a displacement of 948cc. It offers a higher power output of 125.4 HP and a torque of 98.6 Nm. This indicates that the Kawasaki Z900 has a more powerful engine compared to the Aprilia Tuono 660.

Both bikes have a liquid cooling system and fuel injection technology, ensuring efficient performance and fuel consumption. They also have similar suspension systems, with upside-down telescopic forks at the front and swing arm suspension with a monoshock at the rear. The suspension on both bikes can be adjusted for preload and rebound. However, the Aprilia Tuono 660 has an aluminum swing arm and frame, while the Kawasaki Z900 has a steel frame and swing arm.

Aprilia Tuono 660 2021

When it comes to braking systems, both bikes are equipped with double disk brakes at the front with four-piston calipers. However, the Aprilia Tuono 660 has larger diameter disks at 320mm compared to the 300mm disks on the Kawasaki Z900. The braking technology on the Aprilia Tuono 660 is radial, which provides enhanced braking performance.

In terms of advanced rider assistance systems, the Aprilia Tuono 660 offers a wide range of features including ABS, riding modes, launch control, ride by wire, quickshifter, traction control, and anti-wheelie. Some of these features may come at an additional cost. On the other hand, the Kawasaki Z900 only offers ABS as an advanced rider assistance system.

In terms of dimensions and weights, the Aprilia Tuono 660 has a slightly shorter wheelbase of 1370mm compared to the 1450mm wheelbase of the Kawasaki Z900. The seat height of the Aprilia Tuono 660 is 820mm, while the Kawasaki Z900 has a slightly lower seat height of 795mm. The kerb weight of the Aprilia Tuono 660 is 183kg, which is lighter than the 210kg kerb weight of the Kawasaki Z900.

Kawasaki Z900 2019

In terms of strengths, the Aprilia Tuono 660 offers an easy-to-operate engine with a good sound, sporty handling, good ergonomics, decent brakes, and extensive electronics. The Kawasaki Z900, on the other hand, offers light and natural handling with high stability, a silky engine with full pull from mid revs, high chassis transparency, and a comfortable sitting position at a fair price.

However, the Aprilia Tuono 660 has some weaknesses, including a high price-to-performance ratio and the fact that the IMU package comes at an extra cost. The Kawasaki Z900 has some weaknesses as well, such as a TFT display mounted too low, cumbersome menu operation, and rearview mirrors that offer modest visibility.

Overall, both the Aprilia Tuono 660 2021 and the Kawasaki Z900 2019 are impressive naked bikes with their own unique strengths and weaknesses. It ultimately comes down to personal preference and priorities when choosing between the two models.