His explanation was that I had cracked or separated the area where the carbon fork joins the steerer tube. When holding the front brake and pulling or pushing on the bars, there was a significant amount of movement from the frame. It may or may not have been caused be my missing spacer.

It's my Gravity:

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I really like it, and if a new frame is the solution, I'd like to try and find that one. But I don't think BikesDirect sells frames.