I never see these tests give generalizable results.
I am going to enter now my pedantic, professor mode :director: (it is my day job, after all

) so feel free to ignore me.
Was the mileage measured using a GPS or the bike odometer?
How did you measure the fuel used?
We all know that the speedometer in the Burgman is way off (about 10%), but what about the odometer? How accurate is it?
The mpg (or Km/l, or Imperial/mile or Furlong per pint or whater unit is used), was it obtained using the computer on the bike?
and, last but not least, what is the...er...tonnage of the driver?
My Burgman, with my not inconspicuous lard butt :bigsmurf: at the controls, is going to use more gas that another with a 115 lb svelte supermodel driving it (one can dream, can't he?).
I am off the box now

Marco