Originally Posted by jasong
Let's get this rolling.. I'm going to write the Ti company and see if they have any ideas. I think there are two things that make this a legitimate endeavor. Noone is wanting to profit from this. And I've read that their patents are expired.
Did you say Ti?
Incidentally, I think Brompton did plan to make their frames out of Ti as well (as you may know, some of the new models have Ti parts), but someone wrote that a main Ti frame, for whatever reason, was too flexy, so they stayed with CroMo tubing for the main frames. Just something to keep in mind.
There is, however, a Ti version of the Birdy sold exclusively in Japan. I'd love to get my hands on one, but not at $3,000:
Bd-1 Ti
If you don't like the 18" (ETRTO 355) wheels, you can spec them for the Brompton 16" (ETRTO 349) wheels. Either way, Brompton's 16" wheel is almost the same size as Birdy's 18" wheel, so you won't lose much performance.