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old capiler brake problem

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old capiler brake problem

Old 06-23-09, 07:37 AM
  #1  
Green_chili
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old capiler brake problem

I am trying to put this old brake back on my road bike but am having a hard time getting it to really clamp down on the tire. At this point, it kind of slows you down.

Any advice? I have dealt with more modern caplier brakes with no issue... run the cable, turn the screw, tighten and voila. These seem to require something more.

I also have an issue with the top tube cable brazes-- one of them has rusted off. Is the way I have it set up in the photo ok? Does anyone have a suggestion about how to deal with this?
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Old 06-23-09, 07:50 AM
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Originally Posted by Green_chili View Post
I am trying to put this old brake back on my road bike but am having a hard time getting it to really clamp down on the tire. At this point, it kind of slows you down.

I also have an issue with the top tube cable brazes-- one of them has rusted off. Is the way I have it set up in the photo ok?
Absoultely not That type of braze on is a cable guide only for threading continuous housing through, not as a fulcrum for interupted cables.

Ride it that way and you'll not only get poor brake performance (as you now seem to do) but depending on the strength of the attachment to the frame, it may pop off during an emergency stop, causing brake failure and possibly a crash.

Replace the cable threading continuous housing through the remaining guides, and using a cable tie to replace the frontmost one.
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Old 06-23-09, 08:06 AM
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ah ha-- that makes a lot more sense. i am a total newbie to doing my own repairs. thanks so much...
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Old 06-23-09, 08:31 AM
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Stop by your LBS and pick up a brake cable clamp to hold the housing. And check your brake pads; if they're old and petrified you may get better performance with new pads.
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Old 06-23-09, 10:45 AM
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You definitely need some new brake shoes. Those kind were never too good even when new let alone after this much time. Try some Kool-Stop or similar pads. Your old Trek was made to have brake cable housing run full length from lever to caliper. Too bad about all the rust.
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Old 06-23-09, 12:24 PM
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Originally Posted by JohnDThompson View Post
Stop by your LBS and pick up a brake cable clamp to hold the housing. And check your brake pads; if they're old and petrified you may get better performance with new pads.
or you can take the wheel off and tie the calipers to the distance you are looking for and tighten the bolt. If it favors one side of the rim, you might have to loosen the pivot bolt behind and try and get it as centered as possible.
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