I've never sold bikes, on CL. I've sold a couple of other things and never had problems, except when I've listed things in the free section. Good grief are the people looking for free stuff ever a picky lot. "Can you deliver it to Appleton?" (20 miles away). No, sorry. Pick up only. "I don't like the color. Do you have it in a different color?" No, I'm not a store, I just have the one. After both instances, I was sworn at. Never again. Free stuff goes to the parkway with a free sign. It's always gone within an hour or two and nobody gives me any torment.