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Using non recessed nut brakes in recessed nut frame

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Using non recessed nut brakes in recessed nut frame

Old 06-14-22, 09:12 AM
  #1  
capnjonny 
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Using non recessed nut brakes in recessed nut frame

I don't know if anyone else has had this problem.

When building up a frame on a bike I am restoring for the bike Exchange I often change out the 27" rims for 700c. Often it is because the old rims are toast and We don't have anything in that size to replace them.
I just did that on a bike and after fitting some 700 c rims found that none of the caliper brakes I had with recessed nuts(all Shimano) were long enough reach. I wound up fitting some old style single pivot Weinman brakes which work but they do not have the recessed nut.
They seem o/k but I am concerned that they are loose at the back side of the fork. Is there a sleeve available that I could use that would fill the space? or better yet a nut with the sleeve built in?
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Old 06-14-22, 10:22 AM
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Cut off the flanged end of a recessed nut?
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Old 06-14-22, 10:23 AM
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You could take a recessed both and drill it out to use it as a sleeve.
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Old 06-14-22, 10:26 AM
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Originally Posted by Cynikal View Post
You could take a recessed both and drill it out to use it as a sleeve.
Probably better than my idea.
Not probably. Surely.
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Old 06-14-22, 11:12 AM
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Originally Posted by Cynikal View Post
You could take a recessed both and drill it out to use it as a sleeve.
I saved a discussion on this forum that advised the drill bit to use for this a 7/32.
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Old 06-14-22, 12:06 PM
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Rivendell sells this nylon insert for a buck:

https://www.rivbike.com/products/nylon-brake-insert
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Old 06-14-22, 12:10 PM
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Originally Posted by nlerner View Post
Rivendell sells this nylon insert for a buck:

https://www.rivbike.com/products/nylon-brake-insert
I advise against this -- I used a set of these a few years ago, and the nylon insert deforms pretty quickly. It was difficult to extract when I sold the frame because of the high smoosh factor.
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Old 06-14-22, 12:56 PM
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Originally Posted by Cynikal View Post
You could take a recessed both and drill it out to use it as a sleeve.
+1, it worked for me, but boy do I wish I had a drill press for such work!
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Old 06-14-22, 01:15 PM
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Originally Posted by capnjonny View Post
Is there a sleeve available that I could use that would fill the space? or better yet a nut with the sleeve built in?
Take a seatpost bolt female bit, drill it out and file the tang off, file the outermost surface flat, and cut the shank to fit.
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