Well done! I once had a CB400T, which was the "sport" version of the CM, and 58 mpg was about the best I could muster. Admittedly, I never really tried hard for an entire tank. I find that I get bored hypermiling motorcycles and have never made it through an entire tank.
Maybe I should fill the V-Strom tomorrow and use some inspiration from you and "persevere" for at least a 100 miles or so.
