"You might also consider derailleur vs internal hub gearing."

The original poster has, with the help of the first four replies. The Barcelona has a Nexus three speed giving 31 - 58 inches

The Dahon D7 HG (Hub Gear) gives 42" -78", an improvement, but both lose significantly to the D7 which has a better low and top end of 34" - 92". The D7 HG is also more expensive than the Speed D7.

Better hill climbing and a faster top speed for less money, then. Ya pays ya money....

There's a fuller recent discussion of the Barcelona here: