Snake,
I'm also getting quite low on MPG ( havent calculated in Mile/Galon as my bike came in KM/Liter set up ( not sure if it can be changed , probadly yes....)
Anyways,
I was really puzzled at first as even though the tank capacity supposed to be 22l I was getting like 220km avg...
Then, I realised that it all in my riding..... (and the reserve seems to be more than 3l )
For example , since I know it is not charging battery below 3.5k I always endup running it in 4k ( that's on equivalent of 35mph speed limit in city) , on highway same I'll be doing like say .... 100km in 4k , which would be 5gear
The thing with the 4k is that I'm not able to charge batter overnight (public carpark ), so I always run above charging cut off..... it served me well 'till know and I would be able to run on a batter for about 1-2years. Also I feel that that way bike is not so letargic on accel....
Also when movin' from lights I would shift at lest 7km plus minus ( normal riding).... then drop to 4k.....
Some thin like that... ( not inclusive of letting it go which I can't resist from time to time)
Like stated above, on highway the the consumption goes way down ( running it in 5g to 4 g etc....)
So it depends how it is ridden , I guess ....
just my 0.2c...