Originally Posted by
Duragrouch
(above) 16" wheels are out; That would require an Internal Gear Hub, and I don't want the drawbacks of that. Otherwise I think I would be looking at a Brompton for travel. My infrequent-folding 20" is perfect for around town and a trip by train, especially with full panniers. If Bromptons were cheaper, or if I flew often, I'd get one just for air trips. But neither of those things is true, so still gonna try to make do with my 20" folder. EDIT: A Brompton with a 9-36, 7 speed or greater cluster, might work as a travel bike.
OK. I see that you wish to stay with 20 inch and wide range gearing. So that means that if you want to travel with your Dahon, you'll have to learn how to pack it into a standard size suitcase. Here are a couple of videos that I hope can help you to see what is possible.
Hope this helps.
Edward
P.S. As for any content related to my Zizzo, nothing new. I am waiting for the weather to improve a bit so that I can enjoy a ride.