http://www.asphaltandrubber.com/oped...ed-states-usa/


Of the 8,410,255 motorcycles registered in the United States (D.O.T. figure, as of 2011), which states have the most motorcyclists by volume? The answer shouldn’t surprise you as California, Texas, and Florida take the top honors, likely due to their mild winters and coastal routes.
But which states have the highest concentrations of motorcyclists? Now that is where things get more interesting: South Dakota, New Hampshire, and Iowa. You’re a no good dirty liar if you say you predicted those three states to be at top of the list — with each stating sporting 12, 17, 18 and people per bike, respectively.