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Old 12-25-21, 11:52 AM
  #26  
79pmooney
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Originally Posted by JohnDThompson
The threaded stud on brake pad holders is 6mm diameter. The unthreaded stud on vintage cantilever pad holders (i.e. MAFAC, Shimano, Dia-Compe, etc.) is 7mm diameter. I wonder if one might epoxy a sleeve over the 6mm threaded stud to convert it to an unthreaded stud?
The concern I would have is that a canti stud is a lot longer than the threaded one. A user could be clamping to only the extension beyond the threads. The transition between the threaded post and solid would be just a thin sleeve with an epoxy core. Not what I would want to trust my life to.

Edit: two old pads I have on hand show 3/8" (10mm) and 7/9" (22mm)

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Old 12-26-21, 10:56 PM
  #27  
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Originally Posted by 79pmooney
How long have these been around? (These or other models/brands that do the same thing.) This is such a duh! solution to a problem that has been around since 700c and 27" were invented. And how did I not know or think of this before? (Well, part of that is getting introduced to Mafac Racers 54 years ago - the brake with serious reach.)
We have been making these for almost 10 years now.
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Old 12-26-21, 11:03 PM
  #28  
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Originally Posted by JohnDThompson
The threaded stud on brake pad holders is 6mm diameter. The unthreaded stud on vintage cantilever pad holders (i.e. MAFAC, Shimano, Dia-Compe, etc.) is 7mm diameter. I wonder if one might epoxy a sleeve over the 6mm threaded stud to convert it to an unthreaded stud?
That would be a more problematic solution from the manufacturing standpoint. Once we started bonding, we would have to involve another vendor in the process. I am also not sure I like the idea.

If we did make these, we would machine completely separate mounting hardware. I think we could use the same holders but the mounting hardware would need to be canti specific.

I need a head scratch on this and I think I need to sit down with this CnC vendor and see what would be involved.
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Old 12-27-21, 01:49 AM
  #29  
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Originally Posted by Bob Dopolina
That would be a more problematic solution from the manufacturing standpoint. Once we started bonding, we would have to involve another vendor in the process. I am also not sure I like the idea.

If we did make these, we would machine completely separate mounting hardware. I think we could use the same holders but the mounting hardware would need to be canti specific.

I need a head scratch on this and I think I need to sit down with this CnC vendor and see what would be involved.
Scratch away Bob, great to see you taking a hard look at this. So tough to even consider something like this in a global economy for many.
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