Originally Posted by
Bikedud
The shop where I work has sold dozens of Giant Defy Advanced and TCR's with the Shimano Pressfit BB. Also, I personally own only one high performance carbon bike and it's a TCR. I experienced a creaking BB a couple of months after I purchased my TCR and other customers were began reporting the same experience so I conferred with the tech guys at Shimano and Giant. Now, as a matter of routine maintenance, I remove, clean, grease, and reinstall the BB and crankset on my own TCR at least annually (headset bearings too). Over the years I have done the same for dozens of customers. I haven't noticed any correlation between increased temperature and BB noises, but there may well be one. My experience has been that once the creaking/squeaking begin, it doesn't go away until maintenance/replacement is completed.
FWIW- If you have the triangular aero seat post, you may want to make sure you keep the post clean and install some carbon assembly compound.
Bikedud
Thanks for sharing your experience. Does your TCR have an alloy insert in the BB shell? Just wondering with mine having the alloy shell in the carbon shell, is it wise to use grease or Loctite between the bearing holders and the alloy shell? And when you take apart the bottom bracket do you remove your BB86 bearing holder grease and reinstall the same one. I have seen that you are to not reinstall the old one but install a new one every time.