I saw a study San Francisco did on Brompton Bike Hire and other methods of Bike/ mixed transportation. I didn't have a lot of interest in that area, but I was curious about the break even point. I don't have a like to the study but it wasn't tough to find on line. I am using it this week. The system is great but much smaller than the London Bike Hire. The bikes get pretty beat up cosmetically. I want a Brompton at some point and this has talked me out of the mudguard only model. I will be a rack all the way for me. I can't roll this without dragging the front wheel at some point. I think the rack and ez wheel would lift it just enough to avoid front wheel contact with the ground. Ithougth something was wrong and tried 3 different bikes. They all had the same issue. I picked the one that was least bad.