There are so many things wrong here it's outrageous 1:34 That is the incorrect way to remove the old bearing, freeze or push out from outer edges with the same installation tool. 2:15 both c clips were not checked against each other for gap tensions. 3:00 that is the incorrect install procedure, the bearings most be put in a freezer for a bit to contract slowly their size to then make them slide in easier without expanding the frame socket they sit on. Notice here the frame socket is actually being expanded!! At no time did they use a digital caliper to check the socket sizes of the bearing housings. This is a critical step to know of it will creak soon again. Overall this is not even close to how BB30 30 is supposed to be serviced. It's already a poor design by nature so these steps will make you ruin your frame only after a few rebearings.
BB30 is too complicated to become an international standard. I am going to continue using Shimano external bearing bottom brackets, they are much easier to service.
