Cycling and bicycle discussion forums. 
   Click here to join our community Log in to access your Control Panel  


Go Back   > >

Bicycle Mechanics Broken bottom bracket? Tacoed wheel? If you're having problems with your bicycle, or just need help fixing a flat, drop in here for the latest on bicycle mechanics & bicycle maintenance.

User Tag List

Reply
 
Thread Tools Search this Thread
Old 02-09-07, 02:59 PM   #1
lebowitz
Craig A. Lebowitz
Thread Starter
 
lebowitz's Avatar
 
Join Date: Oct 2004
Location: Washington, DC
Bikes: 1984 Trek 520 | 2002 Specialized Hardrock
Posts: 372
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
brake bridge drilling question

I recently picked up a 1986 Univega Gran Turismo that I'm loving.. the one problem is that I don't like the cantilever brakes it has. I'm used to road biking with double-pivot calipers. On several of my 80's road bikes I have had to drill the fork to allow for recessed bolts.

However, on this bike, the brake bridge does not even have the horizontal hole to begin with. The fork is drilled for nutted.

Is it safe for me to try to drill a horizontal hole through the brake bridge, starting the hole myself? Any tips? Thanks for your responses.

Craig
lebowitz is offline   Reply With Quote
Old 02-09-07, 04:45 PM   #2
Sheldon Brown
Gone, but not forgotten
 
Sheldon Brown's Avatar
 
Join Date: Jul 2002
Location: Newtonville, Massachusetts
Bikes: See: http://sheldonbrown.org/bicycles
Posts: 2,301
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
Quote:
Originally Posted by lebowitz
I recently picked up a 1986 Univega Gran Turismo that I'm loving.. the one problem is that I don't like the cantilever brakes it has. I'm used to road biking with double-pivot calipers. On several of my 80's road bikes I have had to drill the fork to allow for recessed bolts.

However, on this bike, the brake bridge does not even have the horizontal hole to begin with. The fork is drilled for nutted.

Is it safe for me to try to drill a horizontal hole through the brake bridge, starting the hole myself? Any tips? Thanks for your responses.
Check the reach first, make sure that you can find a long enough caliper.

See: http://sheldonbrown.com/reach

However, it would really be foolish to switch from cantilevers to calipers. The original cantilevers may not have been so hot...many of the old DiaCompe cantilevers were not so good.

Modern cantilevers, such as Avid or Shimano, coupled with modern "aero" brake levers, lined cable housing and good brake pads (I recommend Kool Stop Mountain pads) will give braking as good or better than you're used to, if properly set up.

See: http://sheldonbrown.com/cantilever-adjustment

Sheldon "Cantilever Countervailers" Brown
Code:
+--------------------------------+
|   Atheists do not believe in   |
|  I before E except after C.  |
+--------------------------------+
Sheldon Brown is offline   Reply With Quote
Old 02-09-07, 04:48 PM   #3
lebowitz
Craig A. Lebowitz
Thread Starter
 
lebowitz's Avatar
 
Join Date: Oct 2004
Location: Washington, DC
Bikes: 1984 Trek 520 | 2002 Specialized Hardrock
Posts: 372
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
thanks Sheldon... the cantilevers I have are indeed diacomp. I'll order some of the Avid cantilevers from Harris. I didn't realize that I could use my caliper brake levers with cantilever brakes, good to know.
lebowitz is offline   Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

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



All times are GMT -6. The time now is 02:56 PM.