Originally Posted by Duragrouch

Well that seems to confirm my suspicion that the issue for tall is not height, but reach. This reminds me of my first-gen Dahon, my knees would sometimes hit the handlebars when standing climbing. But notice in the above bike, how close in angle the handlepost is to the steering axis; I think that has room for at least a vertical post, possibly forward-canting. The head tube may be a bit laid back in angle, hard to tell because the frame monotube intersects at a much different angle than my bike, but Bromptons also have a similar head tube angle I think, and they steer fine with more forward handleposts.

Is it me, or does that bike have a double-folding handlepost with two hinges?