I have a GreenZone steel folder. It was quite cheap new at $200 including a bag. I only use this bike when I have to go on the bus or other public transport method. I find folders because of the short wheel base to be "nimble" or "twitchy". Also the gearing ratio is not as good as my regular commuter (a 1980's Sears "Free Spirit") so I have a work a bit harder. this is just the nature of the folder beast. However it is so convenient to take on public transport or to store at home.