I am considering buying a new bike and I was thinking about getting a carbon frame, a Kestrel to be precise. Though I've seen them at the triathlons I've raced in I don't think I've seen any in bike races. And, I know that no team in last year's Tour rode them either. What is it about these bikes? Are they no good? Are carbon frames no good? I know the Posties ride carbon frames so I guess carbon frames must be good in some ways. I know carbon is supposed to dampen the vibrations of the road, but does it then also take away some of the energy from the pedals to the wheels? Does the carbon start off stiff and then eventually soften up? If so, how long does a carbon frame last? How often do the Posties get new frames? Is there anyone out there that can give me some help on this issue? Thanks in advance.