Why did my wheel fall off?
I came out of Sam's Club and noticed that my bike felt a ltiile funny. When I checked it, I found that the rear wheel was completely off, and basically just hanging from the chain. I had put air in the tire and lubed the chain before I left the house, then rode more than 25 miles (with no problems) by the time I got to Sam's.
You all know I'm not the greatest bike mechanic in the world. What do you think could account for the wheel coming off?