WTF? Cracking Ti frame.

[grantoury]

I have no metallurgy knowledge of welding experience (I can solder some electrical components onto a pcb) but I'd think that a weld or its edges will be the weakest point that might fail again? I.e. It won't be stronger than the original tube [that failed already]?

If you sleeve the tube in a self-sufficient cf ring, it shouldn't fail unless the cf ring fails. And I don't see why it would, given the number of people riding plastic-fantastic framesets. So rough up the surface, stick a pilot into the tube, clamp (or jubilee clip - strictly no gaffer tape!) the tube from the outside and wrap some cf tow to make a sleeve around it. Wait for it to cure. Can even polish this turd and cover with some lacquer to make it look a bit better.

Welding or sleeving, the head tube will look fugly and it will be a "broken" frame, so I'm surprised to see people willing to pay over £100 for frame alone.

WHy a CF sleeve? Wouldn't steel be better?

 

[M_Chavez]

How will you get steel onto it?

As I've said - my metalworking experience is close to zero. I know I can do the cf job, have the tow, hence the material choice.

 

[grantoury]

How will you get steel onto it?

As I've said - my metalworking experience is close to zero. I know I can do the cf job, have the tow, hence the material choice.

Tie it down with a hose clamp?

 

[M_Chavez]

Stick it on with WD40

 

[grantoury]

Oh well. Its lost forever if you ask me. It is probably just too hard to swallow for the owner, I imagine, having a ti beauty that's useless. Maybe better to try to earn money for the material and forget it used to be a bicycle.

 

[M_Chavez]

Dunno. If someone dropped one of these off at my doorstep in my size, I'd sleeve it and commute to work on it until it cracks somewhere else, but that's me - I'd ride anything once...
...Even a big black clock!

https://www.ebay.co.uk/itm/15493422...mbZRS-LIcvZ2ejVzzBa8B-HY04Mr52RBoC5uQQAvD_BwE

 

[eric_james]

Would need to add some lube

 

[greencat]

50 to 100 quid for a potentially fixable titanium frame isn't wholly bonkers (although I'd be looking to pay at the lower end of that).

 

[Bullpup]

Use a mikalor clamp and mount your front reflector on it at the same time!

 

[Jamesbike]

The number of ti frames u see with cracks makes one think it isn't the lifetime material we were all promised!???