How To: Buy a Bike on Craigslist
Here are just a few tips to help narrow your search and possibly keep you from buying a dud:
1. If the pictures of the bike posted are taken outdoors and it looks like the bike has been sitting outside all winter (lots of rust spots), don't even bother looking.
7. Make sure that the frame is made out of a lightweight material. My previous bike had a vintage frame and I didn't realize how much the weight of the frame can detract from your speed. Also, it sucked trying to get that bike indoors.