Last week I purchased a used 2003 Dahon Speed Pro from a reputable shop in town. On the test ride, I noticed a large indentation on the side of the top tube close to the steerer and pointed it out to the sales rep. His response was that it "was supposed to be there" - ie. to accommodate folding. I believed him and went ahead and bought the bike. Now I have come to find out that no, it is not supposed to have a large dent in the top tube, and that it is actually impact damage. So my question is - is it a safety issue or simply a cosmetic issue? The frame is 4130 steel, and in all other aspects rides, shifts and folds just fine.