Here's an example of what I often find. I know I'm not in the C&V category so I'm not turning this into a value thread, this is just an example. Aside from posting in that category and having someone else tell you it's value, if you found this bike for sale(and pretend you don't already know by looking at it), how would you go about learning more about the bike, it's quality and whether the asking price(in this case, $200) is fair? Sorry for no driveline pic, I have asked for one but she's not responded yet.