Thanks for giving me some insight. I am planning on getting into cycling this spring and summer which is easier on my legs (i used to go jogging on the weekends). I am not planning on riding 8 hours straight but am planning on leaving my house early in the morning, spending a day of cycling and coming back in the evening. I will cycle in New York City which is pretty much straight roads with some bumps on the road but is pretty much pavement. I will probably end up folding the bicycle 4-5 times a day for transit / cafe's. Thanks for the link, i really enjoyed the videos. I guess i cant go wrong with a Brompton. Did you get a dynamo hub with yours?