Go Back  Bike Forums > Bike Forums > Framebuilders
Reload this Page >

Brazed cantilever brake boss removal question?

Notices
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.

Brazed cantilever brake boss removal question?

Old 04-07-13, 04:52 PM
  #1  
Full Member
Thread Starter
 
LuMax's Avatar
 
Join Date: Jan 2011
Location: Northern CA
Posts: 279

Bikes: Specialized S-Works Tarmac 2019 "Sagan" Edition

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 7 Post(s)
Liked 15 Times in 9 Posts
Brazed cantilever brake boss removal question?

I should probably have placed my post on this forum, but I have a question regarding how/if I can safely remove brazed on cantilever brake bosses from a chrome-moly fork.

Can you please take a look at my thread (LINK) and offer any suggestions?

Thanks.
LuMax is offline  
Old 04-07-13, 06:05 PM
  #2  
Senior Member
 
calstar's Avatar
 
Join Date: Mar 2012
Location: santa barbara CA
Posts: 1,087
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 96 Post(s)
Liked 30 Times in 21 Posts
If you really must remove them cut them off as close as possible with a hacksaw and carefully clean the remaining up with files and emery cloth, no need to use any torch.

As someone in your other thread suggested consider using the bosses to mount a front rack; check out Old Man Mountain racks in the link below. These are bullet proof and made in the USA(Santa Barbara, Ca). The ones from nashbar(as suggested in your oriniginal thread) are nowhere near the quality or have close to the carrying capacity(nashbar max load 15lbs vs 40 or 50 on the OMM models).

https://www.oldmanmountain.com/Pages/...AndSherpa.html

https://www.oldmanmountain.com/Pages/...rontRacks.html

Brian
__________________
Brian

Last edited by calstar; 04-07-13 at 06:43 PM.
calstar is offline  
Old 04-08-13, 10:04 AM
  #3  
Senior Member
 
Join Date: Nov 2010
Location: River City, OR
Posts: 672
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 9 Post(s)
Likes: 0
Liked 1 Time in 1 Post
From the pics I've seen it appears that this bike came with V-brakes, not canti's. Can't imagine swapping those out for discs, but it's your bike. Those type mounts are a steel stamping for the frame/fork attachment. The posts are furnace brazed to the stamping. It appeared the mounts are attached to the fork with TIG. I'll tell you'll play hell removing the post from the mount with heat without at least doing some cosmetic damage. If you intend to remove the posts but keep the mounts, cut off most of the post and file, or drill out the remainder.
reddog3 is offline  
Old 04-08-13, 12:54 PM
  #4  
Full Member
Thread Starter
 
LuMax's Avatar
 
Join Date: Jan 2011
Location: Northern CA
Posts: 279

Bikes: Specialized S-Works Tarmac 2019 "Sagan" Edition

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 7 Post(s)
Liked 15 Times in 9 Posts
I spoke with a frame builder that I recently met at NAHBS. He said he can remove either the post or the entire boss, he can even repaint it for me when he's done. I will decide later, but for now, this is my temporary fix:

LuMax is offline  
Old 06-07-13, 12:13 AM
  #5  
Newbie
 
Join Date: Jun 2013
Location: Wescansen
Posts: 4
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Sorry for the resurrection of this thread, but I made an account just to post this.

Those missiles you screwed into your brake mounts are super awesome! I was wondering where you got them, or if you made them somehow. My bike has unsightly, unused brake mounts hanging around as well and a pair of those front and back would really finish off the look. Any info would be much appreciated.


Thanks.
Valka is offline  
Old 06-07-13, 07:16 AM
  #6  
Framebuilder
 
Join Date: Dec 2007
Posts: 570
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 8 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
It looks like a valve stem cap...they are made in any shape you can think of. My son likes the ones that look like skulls!
Live Wire is offline  
Old 06-07-13, 07:23 AM
  #7  
Full Member
Thread Starter
 
LuMax's Avatar
 
Join Date: Jan 2011
Location: Northern CA
Posts: 279

Bikes: Specialized S-Works Tarmac 2019 "Sagan" Edition

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 7 Post(s)
Liked 15 Times in 9 Posts
Yes those are shrader stem caps from Electra. They didn't fit onto the posts, so I machined them out on my drill press to get them to fit.
LuMax is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Jmpierce
Bicycle Mechanics
6
08-12-19 07:13 PM
wrk101
Classic & Vintage
9
12-16-17 05:39 AM
cicliste666
General Cycling Discussion
4
11-17-15 11:02 AM
ghostm42
Bicycle Mechanics
3
08-30-11 12:58 AM
Bat56
Bicycle Mechanics
7
12-04-10 09:19 PM

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service -

Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.