I just spent two weeks reading after work this entire 46 pages of Birdy information. You are a dedicated lot of Birdy owners.
That said, I'm thinking of getting one, but a new one is too expensive for me and there's no LBS that carries all the models. Scouring through Craiglist and Ebay nets zero. My preference si for the monocoque design and not the classic.

So since we may go on vacation to Tokyo later this year, I was wondering if anyone who lives in Japan or who is familiar with the bike in Asia could provide some information.
I have been researching the BD-1 and the Bianchi Fretta as options. They seem more reasonably priced and there looks to be more available used models too. So I was hoping to try to snag one while I was there and disassembling it and packing it in my suitcase. Or shipping. Still researching and haven't made that decision yet.

That said, I can't tell if a BD_1 or Bianchi is a Mark 1, 2 or 3. If they don't list the year of manufacture in the ads, it's hard to correlate. Plus I noticed that in some of the latest postings, they are selling Birdys in Japan, so not sure if BD-1s are no longer being sold.

How do I tell if a BD-1 or Bianchi is a particular make? Is it when the handle bar stem and seat post are black? I'm looking at the monocoques. Is there a way to visually tell the difference. Since I'm new to Birdy's, when I look at the frames, I can't see much difference other than colors of the seat post and stems. Well the look of the stems seems different from the Mark 1 and newer models. Are there other things I can look for?

Thanks