As I began my search for another bike I have noticed suggestions from some to look at used bikes. While Craigslist produce a few, scattered results I am curious where else one might find a selection if used tri bikes for sale.

Find your local TRI club, they will help you find the right size and learn what type of parts it should have, someone there may even let you ride there's and may even get you a great deal when they upgrade. the rich guy's are alway's looking at next years models.

craigslist, ebay, local tri groups, local bike shops

Doh. I never thought about the local tri clubs. Thanks!

Last Fall, a co-worker sold me his Cervelo P2K for $400 when he upgraded to a full carbon TT bike.

Try going to triathlons or duathlons...ask around who might be upgrading

I've often wonderd this myself.
What about all the bikes the pros use, they have a new bike every season where are the old ones? There has to be hundreds of good 2 and three year old bikes out there, but everyone I ask just shrugs their shoulders.
Dwayne

Ebay, but you're looking at the wrong time of the season, racers don't usually make a change mid-season. Try October-February on Ebay.

Also check out https://forum.slowtwitch.com/ classifieds at the end of the season.

+1000 on slowtwitch. Most of those bikes will be for serious triathletes, but you will see as we near the end of the tri season, a ton of good bikes and good deals.

2x for slowtwitch classifieds. Got my tri bike there.

This is the thread that I have been looking for. Thanks for the info. Now to find a bike.

Might also want to try the classified forum at beginnertriathlete.com

slowtwitch is it. Period. Know your size though.