how easy is it to push the folded bike on a flat man-made surface (like an office building floor), using the seatpost extended upwards?
I have an M3L that I have to carry some distance to get to my desk. It's doable but annoying. I can't unfold the bike or I'll get flagged by security people for having a bike inside the building (they don't care about folded bikes).
So I've been tempted to add the rear rack, which I can purchase separately from SJS Cyles. But it's a pretty penny (about $200 by the time you add the ez wheels) so I'd like to hear from people who've already got the rack on their Bromptons.
I can actually roll my Brompton by using the front bars instead of the seatpost, but that adds considerably to the amount of space taken up - a problem on the elevators. The seatpost is more vertical, and also less wide. But there's too much friction with the standard rollers to push by the seatpost. That little rubber wheel on the rear fender is more for protecting the fender, methinks, than for actual rolling.