Re: Gas Mileage
I rode nearly 100 miles on a tank a couple of times....I did coast down all the hills I could and never went faster than a "cruise"- maybe 60% max rpm.
So I say at least 150 mpg.
As a side comment, I've only had a problem once with a motorized bike/traffic. It was two drunk boneheads in a van towing a boat and they screamed stuff out the window and purposely cut me off....I think they also forgot they were towing a boat, or it wouldn't have been so close.
I tried my best to get them to come back, boy would they have been surprised.