This is the area of the seat post on my Wilier that had the slight downward tearing in the carbon fiber. It simply started to sort of bend/tear at the seat post opening. I took a file and filed down past it, and this is what looks like now. My thought is that it is not fatal error or that the bike will explode, but I just wonder if it may start up again along that same line. The seat post sits all the way down and the forces I would think not be enough to do anything. I don't use this as my everyday riding bike but it really is a decent frame and I hate to say it is worthless now.