What's going on with this?
 

What could make the top tube like this?

http://www.re-cycle.com/bike.aspx?pic=401

It was made this way intentionally, for very small riders. See Bob Hufford's SLDB:

http://www.geocities.com/sldatabook/...7579.html#1979

Scroll down to the Varsity below the Collegiate and Sportabout. Click on the consumer catalogue pages.

Interesting! Thanks!

That is neat. I knew Raleigh had done it, but was not aware of the Schwinn.

Aaron:)

Saw one of those in the scrap pile at the mennonite bike shop. Should I grab it?

I think Schwinn did it on the 17 inch frames and called it "camelback"...

They used the same curved top tube on the mid-sixties Speedster model.