Originally Posted by
prj71
^^^This.
MY PF BB days are over. Every. Single. One. Nothing but problems.
Again, not all press fit standards are the same and not all manufacturers are the same. Someone that has a Trek with a BB90 is not going to have the same experience as someone with a Giant with a BB86 (for example). Treks with BB90s generally are problem prone, Giants with BB86s are generally problem free.
Only reason bike manufactures started using PF is because it was easier and faster to assemble going down the production line and a slight weight savings.
Maybe a little oversimplified but likely true.
They are now starting to switch back to threaded after they realized it cost them more in warranty work claims than using a threaded BB.
This is debatable. I think the switch had more to do with customer preference. A threaded BB is a big selling point for lots of people buying high end bikes.