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This is a Giant Defy with the Common Debonded Bottom Bracket Shell problem. This time it debonded and bought part of the frame with it. A classic line from mechanics is to just use Epoxy glue to stick it back in. This does not help with the bearing alignment or the correct diameter to help propper bearing function.
In this video I show you how I fixed this issue. Taking into account the expansion from the glue, and the concentricity of the bearings.
The repair worked out perfectly.
the Glue we use is called
Vuduglu from Easy Composites.
www.easycompos...
I would suggest picking up several nozzles as they are single use items.
When choosing a retaining compound consider the gap fill, viscosity and cure time of the product. the Henkel website will help.
www.henkel-adh...
The Bottom bracket used in this case was the Praxis M30 for BB86 to accept the Infocrank PowerMeter Crankset.