I had an 02, while it was slow on acceleraton it went down the highway very nicely, although, 75+ would most certainly be pushing it. Even as a single cylinder it was more smooth on the highway than the Sportster I replaced it with. Unfortunately for you at 6'4", yes, you may in fact look somewhat gooberish on it, especially if it comes with the optional cut down seat. But hey, they get phenomenal fuel mileage so go for it.