
More often than not these days, form follows function in motorcycle design. And, as such, you get blocky shapes for off-roading, more hawkish ones for going fast, and utilitarian for, well, utility.
That being said, for me, there aren't many great-looking motorcycle designs these days. You know, the sort of design that makes you stand back, bite the back of your hand, and say, "Shit, I wish I could just stare at this all day."