Well, if you are like the moving company that I used from New Zealand to the US. You just put the front tire between your knees and snatch the handlebars to the side. This was on my MTB, so it was threadless. The front shocks broke before the handlebars moved. But, what the hell, I was 9000 miles away, so they just kept quiet and shipped it. There is no way a quill stem would hold like that.