Kawasaki Ninja ZX-6R 2019 vs. Aprilia RS 660 2021

The Kawasaki Ninja ZX-6R 2019 and the Aprilia RS 660 2021 are both supersport motorcycles that offer impressive performance and advanced features.

Starting with the engine and drivetrain, the Kawasaki Ninja ZX-6R 2019 is equipped with an inline four-cylinder engine with a displacement of 636cc. It delivers a power output of 130 HP and a torque of 70.8 Nm. The engine features DOHC technology with four valves per cylinder and has a compression ratio of 12.9. On the other hand, the Aprilia RS 660 2021 has a twin-cylinder engine with a displacement of 659cc. It produces a slightly lower power output of 100 HP and a torque of 67 Nm. The engine also features DOHC technology with four valves per cylinder and has a higher compression ratio of 13.5.

In terms of suspension, both motorcycles feature a telescopic fork at the front and a swingarm with a monoshock at the rear. The suspension on both bikes is adjustable for compression, preload, and rebound. The Aprilia RS 660 2021 has a slightly shorter wheelbase of 1370mm compared to the 1400mm wheelbase of the Kawasaki Ninja ZX-6R 2019. This could result in slightly different handling characteristics between the two bikes.

Kawasaki Ninja ZX-6R 2019

Both motorcycles have a lightweight aluminum frame, which contributes to their agile handling. The chassis of the Kawasaki Ninja ZX-6R 2019 is a double-tube, perimeter, extruded design, while the Aprilia RS 660 2021 features a load-bearing engine frame. The rake angle of the Kawasaki Ninja ZX-6R 2019 is 66.5 degrees, while the Aprilia RS 660 2021 has a slightly steeper rake angle of 65.9 degrees. The trail measurement is also different, with the Kawasaki Ninja ZX-6R 2019 having a trail of 101mm and the Aprilia RS 660 2021 having a trail of 104.6mm.

Both motorcycles are equipped with radial dual disc brakes at the front, providing excellent stopping power. The Kawasaki Ninja ZX-6R 2019 has slightly smaller brake discs with a diameter of 310mm, while the Aprilia RS 660 2021 has larger brake discs with a diameter of 320mm.

In terms of advanced rider aids, both motorcycles come with ABS, multiple riding modes, and traction control. The Aprilia RS 660 2021 offers additional features such as launch control, quick shifter, anti-wheelie control, and a more comprehensive electronic package overall.

Aprilia RS 660 2021

In terms of dimensions, both motorcycles have the same tire sizes with a width of 120mm at the front and 180mm at the rear. The Kawasaki Ninja ZX-6R 2019 has a larger fuel tank capacity of 17 liters compared to the 15 liters of the Aprilia RS 660 2021. The seat height of the Kawasaki Ninja ZX-6R 2019 is slightly higher at 830mm, while the Aprilia RS 660 2021 has a slightly lower seat height of 820mm.

In terms of equipment, both motorcycles come with LED headlights, providing excellent visibility.

In summary, the Kawasaki Ninja ZX-6R 2019 and the Aprilia RS 660 2021 are both high-performance supersport motorcycles with their own unique strengths and weaknesses. The Kawasaki Ninja ZX-6R 2019 offers a larger displacement engine and a higher power output, while the Aprilia RS 660 2021 has a more advanced electronic package and a lighter weight. Ultimately, the choice between the two will depend on the rider's preferences and priorities.