Photos from Friday as AMA Vintage Motorcycle Days gets underway at the Mid-Ohio Sports Car Course. It's one of the largest annual gatherings of motorcyclists, enthusiasts, vendors and collectors in the world. Plus, it is all for a great cause, serving as a fundraiser for the American Motorcyclist Association Hall of Fame, a non-profit organization that works to preserve the history and tradition of motorcycling in the United States. Follow the event on social media this weekend with #AMAVMD. The event continues through Sunday afternoon.