I can't say if they're common even though they do market their stuff around the world.
Yes, they have factories all over the world. York, Pennsylvania; Milwaukee, Wisconsin; Kansas City, Missouri; Manaus, Brazi. Just to name a few places. They're a popular biker club motorcycle.
I don't know a lot about motorcycles but I have heard of Harley-Davidson They're an American motorcycle maker, they were found in 1903 at Milwaukee, Wisconsin. Awesome! Are they the most popular motorcycle brand in the US? Honestly, I don't have that answer, but they were 1 of the two American motorcycle makers that survived the Great Depression. That is interesting. Is this brand common in the rest of the world?
Harley-Davidson manufactures its motorcycles at factories in York, Pennsylvania; Milwaukee, Wisconsin; Kansas City, Missouri; Manaus, Brazil; and Bawal, India, and markets its products worldwide.