Originally Posted by
TimmyT
I don't know how how you would identify that. I would suggest getting in touch Mr. Ooyama:
Zunow on CR
Unfortunately, the Zunow website seems to be down, and I can't find an email contact for Mr. Ooyama.
Originally Posted by
Scooper
Here's a lugged version in the same configuration. It has the wishbone seat stays an the monostay carried through the seat tube to the top tube to form a triple triangle frame.
The wheels look like they may be 26" (650c).

Oh, that's so helpful. Thanks Scooper.