Kawasaki Ninja 650 2023 vs. Kawasaki Ninja 400 2023

The Kawasaki Ninja 650 model year 2023 and the Kawasaki Ninja 400 model year 2023 are both popular supersport motorcycles from Kawasaki. While they share some similarities in terms of their inline engine configuration and suspension setup, there are notable differences between the two models.

In terms of engine specifications, the Ninja 650 is equipped with a 649cc inline twin engine, while the Ninja 400 features a smaller 399cc inline twin engine. The Ninja 650 has a larger bore of 83mm compared to the Ninja 400's 70mm, which allows for a higher power output of 68.2 HP compared to the Ninja 400's 45 HP. The Ninja 650 also has a higher torque rating of 65.7 Nm compared to the Ninja 400's 37 Nm. Additionally, the Ninja 650 has a lower compression ratio of 10.8 compared to the Ninja 400's 11.5, which affects the engine's performance characteristics.

In terms of suspension, both models feature a telescopic front fork and a monoshock rear suspension. However, the Ninja 650 has a larger front fork diameter of 41mm compared to the Ninja 400's 37mm, which may provide slightly better stability and handling. Both models offer pre-load adjustment for the rear suspension.

Kawasaki Ninja 650 2023

In terms of chassis, both models feature a tubular steel frame. The Ninja 650 has a rake angle of 65.5 degrees and a trail of 100mm, while the Ninja 400 has a slightly smaller rake angle of 63 degrees and a trail of 92mm. These differences in chassis geometry may result in slightly different handling characteristics between the two models.

In terms of braking, the Ninja 650 is equipped with dual disc brakes with a diameter of 300mm, while the Ninja 400 features a single disc brake with a larger diameter of 310mm. Both models feature petal disc technology, which helps with heat dissipation and improves braking performance. The Ninja 650 also comes with advanced rider assistance systems such as ABS and traction control, while the Ninja 400 only has ABS.

In terms of dimensions and weights, the Ninja 650 has a wider front tire of 120mm compared to the Ninja 400's 110mm. The Ninja 650 also has a wider rear tire of 160mm compared to the Ninja 400's 150mm. The Ninja 650 has a longer wheelbase of 1410mm compared to the Ninja 400's 1370mm. Both models have a similar seat height, with the Ninja 650 at 790mm and the Ninja 400 at 785mm. The Ninja 650 is also slightly heavier, with a curb weight of 193kg compared to the Ninja 400's 168kg. Both models have a fuel tank capacity of 15 liters and 14 liters respectively.

Kawasaki Ninja 400 2023

In terms of strengths, the Ninja 650 is known for its suitability for touring, comfortable riding position, safety features, affordability, ergonomic versatility, and the iconic Ninja styling. On the other hand, the Ninja 400 is praised for its good combination of stability and playful handling, robust and reliable appearance, manageable engine performance, wide range of usable RPM, and pleasant seating position.

However, both models also have their weaknesses. The Ninja 650 has average chassis and brake performance, and the adjustment of the rear shock can be cumbersome. The Ninja 400 has limited space for taller riders.

In conclusion, the Kawasaki Ninja 650 and Ninja 400 are both capable supersport motorcycles with their own strengths and weaknesses. The Ninja 650 offers more power and torque, advanced rider assistance systems, and a slightly more robust chassis. On the other hand, the Ninja 400 is more nimble and offers a more manageable engine for riders who are new to the supersport segment. Ultimately, the choice between the two models will depend on the rider's preferences, riding style, and intended use of the motorcycle.