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Pursuit frame crack at right chainstay joint with main tube. I discovered this crack just as I was starting out for a ride when the bike felt more squishy than usual when I sat down on it. It also seemed sink down in a slightly asymmetric way. Just as one might check the parking brake when a car feels sluggish, I felt down below my seat for any obvious sign of frame failure, and felt a sharp ridge where there should only have been a smooth weld bead.