Originally Posted by Boudicca

You need to figure how how small the bikes need to fold, and start from there -- maybe go back and ask your question in the folder forum, accepting that everyone will favor his/her bike a little. I only really know about the Bike Fridays, and I would have no hesitation about recommending mine -- I've ridden a century on it. But they are relatively expensive, although you can sometimes find second hand bikes on Craigs List or elsewhere.