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How to center Campy single-pivot rear brake?(6 posts)

How to center Campy single-pivot rear brake?michaelc
Mar 28, 2001 1:15 PM
Anyone have any suggestions on adjusting these brakes? Since there are no adjusting screws I can see, I assume I have to center them using the mounting bolt. Or am I just missing the obvious?
re: How to center Campy single-pivot rear brake?rrmambo
Mar 28, 2001 1:30 PM
Your not real specific but if you are talking about old style Campy brakes like Super Record, etc. the centering is done with a cone wrench near the pivot bolt. You should see a flat indention where I belive a 15mm (might be another size 14, or 16) cone wrench will fit in. I hope this is of help. I still do it this way on an old bike with Campy Colbalto brakes. Park used to make a tool specifically for this purpose called an offset brake wrench. I hope this is of help.
re: Sorry about that. I meant the new 2001 version...michaelc
Mar 28, 2001 1:43 PM
But I think you just confirmed my hunch about what to adjust. Thanks for the help.
re: How to center Campy single-pivot rear brake?cincy1
Mar 29, 2001 8:51 AM
I had the same problem with my Campy 2001 rear single pivot brake. There are two ways to adjust. One using the cone wrench that was suggested to you. The other is to use a hex wrench at the frame attachment point and just twist the entire brake structure slightly. I used the latter because my frame interferes with a cone wrench trying to get to the other bolt.

Is the rest of your gruppo a Campy 10 speed? I can't find a bike shop that can fix the rubbing between my chain and the cage on the front derailleur when I'm in the lowest and highest cogs on the rear cassette. Any ideas anyone?
How to adjust front der.ken ross
Mar 30, 2001 8:21 AM
You may have to play with how the front der is mounted, pivoting it around the seat tube, or moving it up and down, to find the 'sweet-spot' that has minimal rub. Of course, if you are in the big ring and largest cog, or the little ring and smallest cog, there might not be much you can do. I've spent a couple of hours over a few days adjusting everything and seeing if the effects where what I wanted till I had it right.
front derailleur adjustment....dave
Mar 30, 2001 1:52 PM
It's no different than any other front derailleur. There are stop screws for the high and low limits (big and little chainrings). When set properly, the chain won't rub at either extreme. You have to be sure that the shift cable adjustment is not set too tight, when setting the low limit stop screw. If the cable is too tight, the derailleur won't rest on the stop screw. The last click on the thumb lever should place the derailleur on the low limit screw.