Originally Posted by
ttakata73
Regarding Dahons, you're probably out of luck.
I'm 5'8" with a 31" inseam and my 600mm seatpost has 5-7cm of safe length to spare.
This goes for both the 16" Mantis and 14" Dove
Since you're ~15cm/5" taller, you will run out of seatpost.
Do some research on Brompton, maybe they fit taller riders?
Bromptons can use a telescopic seat post to fit taller riders. I am 6'-2" with long arms and legs. I can ride a Brompton, most Dahon's I can't get the post far enough up. I almost bought a Speed TR, but with the seat post all the way out it was still over an inch low. There are somethings you can do, like ad a thud buster, but it adds cost and weight.
As far as the difference in a 16" wheel vs the 20" wheel. The smaller wheel is more prone to "grabbing" pot holes and curb edges than a larger, just a normal part of the way they work. I can ride a Brompton just as fast or faster than I can a 700c machine with a similar set up. Not that I am that fast to begin with.
Aaron
