Super interesting thread ,what with the efficiency discussion, Rohloff info and such; but the thing that baffles me is that Brompton is f___ing around with the transmission and the thing still lacks proper brakes! Maybe a 140mm disc up front moved towards center to offer better protection to the disc, come to think of it, it would be on the inside of the fold anyway. Of course until I see one for sale here (USA) I really don't know that it will ever be available.