These are cool. I talked to Treen's son right after I bought this. They went to the Schwinn factory and found out they couldn't compete in the market place with their bikes so production was cancelled. There were both boys and girls models prototyped and sent to select dealers to see if there was any interest. Not many were actually put into production. There was actually another model made with the regular servi-cycle front end and fenders. I've only seen 2, the one I own and a restored one, also a girls model, in Texas for sale.