I was surprised to get between 42 and 44mpg on my recent trip from Boston to Indy for MotoGP. I was fully loaded for camping. Until that trip I typically got 38-40mpg. My fuel light regularly came on about 190 miles and I took between 4.3 and 4.5 gallons. The bike has 39k miles, a fresh tune and valve adj, new front hoop with an excellent balance job. I used Scorps with 3k miles on them. 34psi front and 36 rear. Maybe the improvement was simply because I cruised the slab at 68-72 indicated on my GPS. I think that is about 4mph slower then my other trips.