Early Swing Bike (Pivicycle) Magazine Reference!
John Brain sent along this note on July 9, 2010:
I know your into Swing Bikes to some degree, one of the guys on the Musclebikes forum was asking me if I had anything on them, which I do. He pointed out your Swing Bike site and I saw your name on one of the pages. I'm passing along a couple of photos that were taken in early 1971 at a trade show. They show Ralph Belden (the inventor) and Phil Brasseur. Kind of interesting eh? Called the "Pivicycle" at that point of time.
The one publication that shows only Ralph Belden and his "Pivicycle" is from the April '71 issue of American Bicyclist and Motorcyclist (usually just a boring trade journal). They were covering the bicycles seen at the 12th International Cycle Show held in New York, that took place March 7-10, 1971.