Unbrazing / replacing tubes, possible?

Posted on Mon 15th, February 2016

• #1

jetski

Hi,
if you look at (for example) the Bob Jackson site, they state prices for the replacement of single tubes.

Apparently it is possible to unbraze tubes although there is not much written about it on the net, and I wonder how they do it, the right way.

In my case (Nivacrom tubing), I would like to unbraze the seatstays, chainstays and the dropouts, modify the geometry a little bit (there will be new seatstays as the old ones are too short, but chainstays will be kept) and have them rebrazed. Anything to keep in mind? Will the Nivacrom and the lugs be alright with this?

And another question: after unbrazing and removing the dropouts, is it possible to heat up just the chainstays near the BB and move them inside the lug into a different angle (by around 5°) - or would you always completely take them off and rework/file the tubes, then rebraze in the new angle?

Best
jetski
• #2

yoav

I think it's all possible but probably cost more than the frame is worth.
• #3

roadwarrior

Just get a custom frame built

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