Oooh! A JP bike history thread. I'm all ears...ur...eyes. I've been sparking some controversy over the Miyata history on another forum by posting this.
http://en.wikipedia.org/wiki/Miyata It goes back much farther then I had thought, and I'm not buying some of it.
I'm curious, when you ask about "lightweights", are you asking when tubing manufacturers started using lighter alloys, or when they started carving excess metal out of the interior walls of the tubing?