This suggestion is from Jay:
I had not heard of this museum until recently. It's only an hour+ from here so I checked it out yesterday. If you ever find yourself in PA, try to see it. I was astonished at the size of the place. It's not exclusively bikes, but nearly all interesting. I think Bill (I met him - very pleasant fellow) loves anything old or 2 wheeled - except anything Japanese. I saw bikes I had never heard of, but nothing from Asia. Well, Bill is a long time custom Harley guy, so....
It's a reminder of a time of when Harley built motorcycles rather noisy wannabe cartoons. Not far from the intersection of I-80 & I-81 it's a perfect weekend trip from Boston or NYC. There are many nearby state parks for camping.