5.25 Litres per 100 klms. 45 MPG (US). 53 MPG (Imperial) that was cruising at 110 – 130 KPH for 3 hours. All up weight of Jo and I and luggage 180 Kgs. (380 Lbs).
Thats on a 790cc engine riding 2 up.

When I ride solo I usually use about 5.1 Litres per 100 Klms.
With my current settings. Also a 18 tooth front sprocket.