You are reading a single comment by @M_V and its replies.
Click here to read the full conversation.
-
That cheap Holdsworth I chopped up sprang like a fucking kangaroo when I cut through the seattube.
To be honest though, I don't think I've ever cut up a frame (and I've cut up a few) that didn't twist at least a bit once given the opportunity.
M_V-
Sounds about right.
My bro had a headtube crack on an early 90's falcon team bike and took it to our framebuilder (Abilita) - he said that Reynolds lugged frames shouldn't be jigged during braze. He then showed us a pile of mass produced 501/531 with cracks around the HT/DT area .
He said you get away with this technique on gas pipe but not fancy alloys or butted tubes
Rik_Van_Looy
Back in the early 90's when cheap lugged 501 frames were mass produced this was a common failure mode, e.g crack s between head tube lug and shifter boss.... Raleigh, falcon, Holdsworth etc brazed in jigs by factory workers