Although the page over at the National Association of Watch & Clock Collectors that houses these pictures of a miniature motorcycle made of watch parts contains no other information, I have it on good authority that it was, in fact, the velocipedic steed of one Mr. Ralph S. Mouse.
Watch Motorcycles [NAWCC via Hacked Gadgets]
I guess instead of saying “pt-pt-pt-pt” to make this one go, he would say “tick-tick-tick”, huh?
Always wicked cool. Link to a past boingboing article along the same lines.