Just curious how you arrived at this conclusion... after all it was a rental bike, the LBS in question would have been required to maintain it for safety and done constant maintenance to keep it in service and useable as a rental bike.. upon selling it, it should have been fully tuned up and any problems that dropped the price beyond normal wear and tear disclosed.. if not the LBS could easily be on the hook if something happened. This isn't like a private CL transaction at a rock bottom price or anything.