Harley, like any other manufacturer care a great deal about unlicensed use of their logo and name, especially if someone is profiting by using that name and logo. Simple fact is they either haven't found out about it or they don't care. The only way to find out is by asking them. My experience of companies though is that they don't mind too much provided people are not trading on their name. The hog in the store isn't technically trading on the Harley name even though that is used in the advertising. It's trading more on the "style" of bike. It could just as easily (and more safely) be called a Hubawangula Hog. But heck, that's up to the vendor if they want to take the legal risk isn't it?