I found a guy selling 4 bikes from craigs list. I'm going to be around 58c, so I was hoping some one could tell me if any of these bikes are a wise buy. I was thinking about offering less than the asking price. What would be a good price for these bikes? Anyone's suggestion would be greatly appreciated. TIA

*Link to 4 bikes 4 sale*
https://sacramento.craigslist.org/bik/607010276.html

I would ask the guy for more pictures, particularly of moving parts (deraillers, cassette, chain ring, hubs, etc), to get a better idea of their condition. If the seller could identify the make/model of the specific parts that would be helpful as well.

I can't get a response from that guy... or anyone else for that matter. However, I have found two other prospects to purchase from.

These sound like better deals, and they have pic's of moving parts as you asked. and they are cheaper!

I hope one of these is the one, I dont know how many cm the blue one is and the yellow one is 61c. I hope that wont be too big, I think 58c is what I should have. but maybe it wont be too big of a difference. Anyways what do you guyz think?

yellow
https://sacramento.craigslist.org/bik/607648677.html
blue:
https://sacramento.craigslist.org/bik/607525036.html

In my market, D.C., I usually sell 27" wheel bikes between $95 and $150 - and they don't need work or tires.
The yellow Continental will be heavy, and has chrome/steel wheels that don't perform well in the rain.
I'd go with a World Sport over a Traveler.