I actually had one of the salesmen at the dealer try to tell me that the bigger the engine, the better gas mileage I would get. He said that since the engine is putting out less effort at any given speed, I should see really good gas mileage out of a 110 engine. I turned and asked him if that means I should get V8's in all my cars to get better gas mileage too, and I just got a puzzled look out of him. As far as the mileage goes, I only have 500 miles on mine so far, and I've only filled it up twice now. I'm looking forward to getting a final tune and taking to the highways and find out what kind of mileage I'm getting. I still figure that most of the others that I ride with will still have 5 gallon tanks, and I'll be limited by when they need gas. I am figuring that based on cruising around 70 mph, I'll see something in the low end of the 30's also. I would also guess that if I could control myself to a speed of 55mph on a highway trip, I'd see something at least in the higher end of the 30's, but I doubt that I'll ever to able to keep myself in check for that long.