Where can I find the frame size printed on a cervelo p2c?
Usually there is a sticker on there somewhere, but if it is not there you can to measure the length of the headtube and consult the Cervelo frame geometry charts for corresponding frame size.
what year/color is your p2c?
Anne (also in Chicago)
Hi Anne-
it is a red 2007, and has literally never been ridden. I broke my ankle right after I bought it, and never returned to triathlon. I’m just now thinking it may be time to sell it 
Jenn
wah! sorry to hear that.
isn’t it time for your triathlon comeback? 
as I described, measure the length of the headtube of the bike and refer to the chart for size:
http://www.cervelo.com/media/docs/P2-bd9e4d19-8f04-483a-b3f9-7343cad65732-0.pdf