Originally Posted by
deep_sky
I own a 2005 Trek Pilot 2.1. I am looking at possibly replacing the headset and was wondering if the Chris King Inset headset would be compatible. My google skills have failed me and I was hoping someone here would be able to tell me if it is or is not. What I do know is that the headset the bike came with is internal and it is made by Cane Creek, and thats about all I know

If you need to replace that headset it's simple. Pull it apart take the two bearings out, find out what size integrated they correspond to and buy the replacement. Here's a good page.
http://www.parktool.com/repair/readhowto.asp?id=68