I use a DaHon folder on the train going to work in the morning and coming home in the evening. Mine is a Curve SL (with 8 speed Shimano Nexus) and it works very well. It has 16" wheels, so folds almost as small (though not as clever!) as the Brompton.
No problem taking it (folded) on the Los Angeles Metro System (Green line for me, middle of the 105 Freeway), and it's a fun bike to ride the 6.5 miles to the station and the 1.1 mile to work from the 110 Freeway station. My train ride is 10 miles.
Rick / OCRR
