you have to remember your reserve, then there is also the fact that you can never get the tank 100% full due to the air gap at the top.
so if you say 1gal for the reserve (i dont know how big a gallon is so... :?
with however much for the gap and then theres also the fact if you put the bike on the centerstand you get more petrol in the tank (silly but true)
so if you say 1gal for the reserve (i dont know how big a gallon is so... :?