Among the motorcycles you mentioned, the mileage or fuel efficiency can vary depending on multiple factors such as engine technology, aerodynamics, weight, and riding conditions. However, it's worth noting that motorcycles with similar engine displacements and power outputs tend to have comparable fuel efficiency when ridden at a consistent speed.
In your case, riding in the range of 75-85 km/h on a highway, the fuel efficiency of the mentioned motorcycles might be somewhat similar. Generally, motorcycles with fuel-efficient engines and good aerodynamics tend to provide better mileage in such conditions.
To get accurate and up-to-date information on the fuel efficiency of these specific models, it is best to refer to official manufacturer specifications or consult with owners who ride these motorcycles under similar conditions. Real-world experiences from owners can provide valuable insights into the fuel efficiency you can expect.
Remember that individual riding styles, traffic conditions, and other variables can also impact fuel efficiency, so it's essential to consider these factors as well.