brake calipers loose
12-08-10, 06:37 PM
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brake calipers loose
fixed it, just had to keep messing around with different washer combos. its not perfectly center but it stops the bike and doesn't rub anymore. thanks everyone
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"Lime green Velocity in the morning, bike thief take warning. Green rim in the afternoon, you're a buffoon." -Bike snob Nyc
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Last edited by HIGGINS!?; 12-08-10 at 09:28 PM.
12-08-10, 07:39 PM
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Two things here. First is the caliper, whose arms are held down with a nut and locknut in front. That has nothing to do with the lever. Adjust the caliper for the least play that still allows the arms to move smoothly and return under the power of the spring. (squeeze them by hand to test).
Now when you attach the cable, it needs to be pulled tight enough to close the brake to within a few millimeters of the rim. The caliper spring will pull against the cable and apply some tension to the lever.
Now when you attach the cable, it needs to be pulled tight enough to close the brake to within a few millimeters of the rim. The caliper spring will pull against the cable and apply some tension to the lever.
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12-08-10, 07:40 PM
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I am not familiar with that brake but the front nut is generally not for tightening the calipers to the frame. There are usually two nuts there - one to take the play out of the brake (but the brake must still be free to swing side to side) and the other tightens agians the fist to lock it in place.
Generally speaking, single pivot caliper brakes feel loose side to side, even when properly set up. You have to turn them pretty far before the spring pulls them back towards center. This is one of the main problems people had with that design as they are difficult to keep centered. Hoever, if they are on so that the nut on the back is good 'n' tight, and both sides lift off the rim when the brake lever is released, then they are on straight and as good as they can be. Like I said, I am not familiar with the model of brakes you have, but they may be as good as they can be.
Generally speaking, single pivot caliper brakes feel loose side to side, even when properly set up. You have to turn them pretty far before the spring pulls them back towards center. This is one of the main problems people had with that design as they are difficult to keep centered. Hoever, if they are on so that the nut on the back is good 'n' tight, and both sides lift off the rim when the brake lever is released, then they are on straight and as good as they can be. Like I said, I am not familiar with the model of brakes you have, but they may be as good as they can be.
12-08-10, 07:46 PM
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so it should have a little side to side play without the cables attached. Ill route the cables and see what happens, also i'm running the right brake as front, which i know normally is from the left side. Since the cable is going to come straight down instead of crossing over the head tube from the other side is that going to give me any issues?
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"Lime green Velocity in the morning, bike thief take warning. Green rim in the afternoon, you're a buffoon." -Bike snob Nyc
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12-08-10, 08:10 PM
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so it should have a little side to side play without the cables attached. Ill route the cables and see what happens, also i'm running the right brake as front, which i know normally is from the left side. Since the cable is going to come straight down instead of crossing over the head tube from the other side is that going to give me any issues?
12-08-10, 08:51 PM
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I attached the cable and got the pull right but when i brake the right side of the caliper stays close to the rim and i have to pull it back into position. sometimes its not an issue and doesnt rub, sometimes it does.
EDIT: I figured out its the spring that is causing the above issue, its shifting the caliper to the left for some reason.
double edit: i think its a lost cause, they are single pivot. Its not the spring its the cable housing pushing straight down on the caliper is causing it to move sideways. When i pull it out the brake sits perfectly in the center. If only i could tighten the entire caliper to the frame.
EDIT: I figured out its the spring that is causing the above issue, its shifting the caliper to the left for some reason.
double edit: i think its a lost cause, they are single pivot. Its not the spring its the cable housing pushing straight down on the caliper is causing it to move sideways. When i pull it out the brake sits perfectly in the center. If only i could tighten the entire caliper to the frame.
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"Lime green Velocity in the morning, bike thief take warning. Green rim in the afternoon, you're a buffoon." -Bike snob Nyc
"Lime green Velocity in the morning, bike thief take warning. Green rim in the afternoon, you're a buffoon." -Bike snob Nyc
Last edited by HIGGINS!?; 12-08-10 at 09:00 PM.
12-08-10, 09:33 PM
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I attached the cable and got the pull right but when i brake the right side of the caliper stays close to the rim and i have to pull it back into position. sometimes its not an issue and doesnt rub, sometimes it does.
EDIT: I figured out its the spring that is causing the above issue, its shifting the caliper to the left for some reason.
double edit: i think its a lost cause, they are single pivot. Its not the spring its the cable housing pushing straight down on the caliper is causing it to move sideways. When i pull it out the brake sits perfectly in the center. If only i could tighten the entire caliper to the frame.
EDIT: I figured out its the spring that is causing the above issue, its shifting the caliper to the left for some reason.
double edit: i think its a lost cause, they are single pivot. Its not the spring its the cable housing pushing straight down on the caliper is causing it to move sideways. When i pull it out the brake sits perfectly in the center. If only i could tighten the entire caliper to the frame.
https://www.sheldonbrown.com/rim-brakes.html#centering
https://www.parktool.com/blog/repair-...-brake-service
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