nice bike, but man that stem
I dunno about your chain banging, but it looks like your cranks are really close to your frame. if there isn't more than a little room between the cranksand the frame, the flex in the crank arms when you fall is going to dent your chainstay. i have seen it, and had it happen, all too often.
daim thats a nice bike :-)whats its weight?
Nice bike, but man that stem likes like an orthepedic shoe.