A plug for ThorUSA ! My first Folder a year ago was a used single speed Dahon Boardwalk. I had no problem with going up some of our Steep Ascents on our long Drawbridges. Now I have a Dahon Mu Uno(single speed) and I hit the same steep ascents, many times with a stiff breeze and still no problem. The Mu Uno is nice for using on mass transit since it is superlight making for easy lifts onto our escalators, up onto Bus Racks and it folds in a flash, something I may do 3-4 times a day when I'm out. I'm looking for a reason to change to a multi-speed but so far it hasn't been needed. Thor has that great price of $150 SHIPPED for a Boardwalk model, cannot beat that price anywhere~!