Advertise on Bikeforums.net



User Tag List

Results 1 to 6 of 6
  1. #1
    Senior Member
    Join Date
    Oct 2005
    Location
    'Sauga, ON
    My Bikes
    Bianchi SL2 centuar custom, 85 Trek 720
    Posts
    351
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    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.

  2. #2
    Randomhead
    Join Date
    Aug 2008
    Location
    Happy Valley, Pennsylvania
    Posts
    12,498
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    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.

  3. #3
    Senior Member
    Join Date
    Oct 2005
    Location
    'Sauga, ON
    My Bikes
    Bianchi SL2 centuar custom, 85 Trek 720
    Posts
    351
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    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.

  4. #4
    Randomhead
    Join Date
    Aug 2008
    Location
    Happy Valley, Pennsylvania
    Posts
    12,498
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    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.

  5. #5
    Banned
    Join Date
    Aug 2005
    Posts
    5,117
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    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.

  6. #6
    Senior Member
    Join Date
    Mar 2007
    Posts
    5,855
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    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.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •