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Framebuilders Thinking about a custom frame? Lugged vs Fillet Brazed. Different Frame materials? Newvex or Pacenti Lugs? why get a custom Road, Mountain, or Track Frame? Got a question about framebuilding? Lets discuss framebuilding at it's finest.

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Old 06-26-09, 08:17 AM   #1
lxpatterson
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re-brazing canti bosses

Hi,

I have an old lugged touring fork i want to use again (frame broken). The problem is that it's for 27" and I want to have the bosses rebrazed for 700c. I am wondering whether this will compromise the strength of the fork legs.
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Old 06-26-09, 11:41 AM   #2
unterhausen
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did you try a 700c wheel to see if it would work without modification? Seems a shame to ruin a paint job for 4 mm in spacing.

It shouldn't be a problem to move canti bosses assuming it is well done.
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Old 06-26-09, 01:40 PM   #3
lxpatterson
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yeah the pivot is too close to the pads. It can be made to work, but it's tweaky, goes out of adjustment easily and not very powerful.
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Old 06-26-09, 06:37 PM   #4
unterhausen
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that's too bad. I am afraid I'm going to have to do this with my tandem if I want to change sizes. I also would have to respace the massively overbuilt rear triangle, so that's on the back burner for now.
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Old 06-26-09, 08:50 PM   #5
NoReg
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http://www.paulcomp.com/motobmx.html

What about these guys? It would seem they would move down the 4mm required to adapt, and you would get more power, These can be a little finicky on touring bikes if the wheels go out of adjustment, but mine don't so I would try them. You could ask them what they would recomend and what kind of lever would suit.

That said, 27" wheel are a pretty good choice for touring. Just look up any article on why 29ers are the salvation of the wheeled world and all the same arguments may obtain. Walmart sells a folding Bell tire for them that comes in a number of treads, where you find it, and the smoother ones seem pretty good to me. I was toying with the idea of building a 27" wheel touring bike. I was also like 700C, and 26". So far 650B hasn't called me.
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Old 06-26-09, 09:52 PM   #6
Six jours
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Relocating the braze-ons is easy and safe. Done properly it will not affect the strength of the tubing. It is probably a good idea to grind off the old bosses rather than heating them. It takes quite a bit of heat to unstick brass brazed parts.
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