I've discovered the folding bikes here and found they are quite capable, relatively speaking, as opposed to a gimmick or "toy". Something I have been thinking about is how I will be able to get some riding in on my work trips that have me all over the US - my regular bike would be a pain to strip and pack, not impossible but a major deterrent.

My question is with gearing. My most often used gear range is 31-83 gear inches, with more often times dropping to the mid-low 20's than going the other way to the low-mid 90's or beyond. Other than the Bike Friday Speeding Tikit, what are some other 16" wheeled bikes with lotsa gears?

I've been looking at the Bromton's also, but the most gears they offer is 6 - and they use pretty specialized gearing. I think they do have a leg up on the "compact fold-ability" over a Bike Friday, though.