I have a very nice Birdy monocque that I got tricked out when I was consulting in Germany, but my girlfriend's living with me now and I need another bike for her (that's my excuse).

I'm mildly considering the IF Mode - have to take a look at it. Any other folders that could keep up with a Birdy worth a look?

I know from experience that a Brompton doesn't seem to fit the bill, but I'm willing to hear you out if you think otherwise.

This would be for trekking around town and longer rides in New York City.

Thanks in advance.