Headtube cracks

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ftwelder":1yv980cc said:
The issue with that frame is not the risk of the head tube breaking off, it's there is no longer any pressure holding the cup. Its "sprung". Put the bike on the wall.

All metals are subject to fatigue failure. Aluminum has the lowest threshold for fatigue damage of materials used to make frames.
marin man":1yv980cc said:
I get that but the cups are still held in really firmly :?


Why am I not surprised?
 
:lol:

If FTW tells you to put your frame on the wall.... you put your frame on the wall.

Love this site sometimes.
 
After seeing what the first stage of anodising did to some old ally bike parts :shock: I decided that old ally bars and posts wouldn't be going on any of my builds :-(

The ano guy said it was typical of parts that had been subject to salt attack - even though they polished up nice and looked OK before the process. I guess it's the price we pay for using them on the roads in winter when they have been gritted :-( even USE ano posts had sufferd a little - in a line down the back where the ano gets scuffed and dirt / salt gets to them from the seat tube split :-(

Old ally frames should be checked properly and treated / maintained carefully ...

WD :D
 
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