I have a Bike Friday (and I even visited the factory in Eugene OR to pick it up, which was fun). There's a clear difference between it and a Brompton, slow-fold

I have a Bike Friday (and I even visited the factory in Eugene OR to pick it up, which was fun). There's a clear difference between it and a Brompton, slow-fold vs. quick, essentially. I have gone on great plane trips with my Friday, but it wouldn't be very practical for taking on public transit, and it doesn't fold up much without coming apart, and that takes tools and time.