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Linear Pull Brakes ( Help Me Out )

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Linear Pull Brakes ( Help Me Out )

Old 05-16-16, 02:33 PM
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Justpassedu
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Linear Pull Brakes ( Help Me Out )

Hi all , so I recently purchased a bicycle for my girl and let her pick out whatever she likes , we were looking for something just to cruise the local boardwalk with by our new place. She picked out a inexpensive cruiser. I needed something myself so I decided to grab a cheap Shwinn 29'' Cruiser from walmart online and when I called the store to have it built no one at all would pick up in that department in 3 different stores. After spending hours on hold I decided I would try my hands at building it myself. It took me sometime and a few trips back and fourth to the hardware store for the proper tools and watching a couple of youtube videos and I finally got most of it together. Something I never thought I could do and I am happy I had tried. Now here is my main problem , the bike has what you call Linear pull brakes , I made sure my wheel's were as straight as I possibly could and went on to install brakes. I cannot for the life of me figure some stuff out. I read on up on how to make adjustments , get the pads on there. When I pull the brake I only see one side ( the right ) really pulling in and working as I pull the lever. Also when completely mounted I can kinda push the metal housing that holds the brake pad with my hand and it will move out of place a little bit. I know I bolted them in well. So when I set up the brakes and finish they do seem to work but than I can go and push that metal bracket holding the pads and the whole thing is out of wack again. I am new to this , It could possibly be bc its a cheap bike or I just don't know what I am doing. I was going to take it to a shop but I'd really feel good if I could figure it out myself. any help would be great - Thank you
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Old 05-16-16, 02:53 PM
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These d@mn things are a b!tch to adjust. Best to just un-hook the long end of the spring, bend it out a bit, the clip it back in. You could spend all day using the adjusters and still not get them right.
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Old 05-16-16, 02:59 PM
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I figured that , I did spend all day with them and had no luck. Do you think it may be ok to remove the front brakes completely and just use the rear since I think those are working well or is it suggested not to. As for a spring , I don't even remember seeing 1 when I put it together .
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Old 05-16-16, 03:03 PM
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Don't give up! Also, because of weight transfer, your front brake does most of the work (when you brake, your weight moves forward).

You're not familiar with how to set these up, but they're pretty simple devices and I believe you can figure it out.

Read this article and watch the videos, and you should be all set: Park Tool how-to on linear-pull brakes
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Old 05-16-16, 03:13 PM
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I don't want to give up , I got this far already. I did watch that video , see the lever ( metal things that hold the pads, one on each side holding the brake ) , When installed , if I push them slightly by hand they move and throw the brake's out of wack. I don't know why this is happening.
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Old 05-16-16, 03:41 PM
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Originally Posted by Justpassedu View Post
I don't want to give up , I got this far already. I did watch that video , see the lever ( metal things that hold the pads, one on each side holding the brake ) , When installed , if I push them slightly by hand they move and throw the brake's out of wack. I don't know why this is happening.
Unfortunately, inexpensive brakes (of any type, not just linear pull) often just won't hold their adjustment. Anyway, try this:
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Old 05-16-16, 04:05 PM
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All else Bent the straight springs into a curve on the weak side..
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Old 05-17-16, 10:27 AM
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That last video helped allot thank you , I rebuilt them last night and they seem to work well now but same problem , if I just gently push the brake fork they move out of place and I have to center them again with my hand. Also there is no straight spring to bend , on mine it is just a thick piece of metal rod that looks similar to he video but it wont end easy at all . I also notice the front tire does slightly wobble but there is no adjustment for this or room to center it.
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Old 05-17-16, 11:33 AM
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Originally Posted by Justpassedu View Post
That last video helped allot thank you , I rebuilt them last night and they seem to work well now but same problem , if I just gently push the brake fork they move out of place and I have to center them again with my hand. Also there is no straight spring to bend , on mine it is just a thick piece of metal rod that looks similar to he video but it wont end easy at all.
On some brakes the spring is completely internal. The only ways to increase the tension on one of those (besides fiddling with the tension screw) is to either remove the caliper arm and put the spring peg in the top of the three holes on the fork (if the fork has three holes ...some only have one), or rotate the arm around the pivot as far as you can, which will bent the coil spring inside.

I also notice the front tire does slightly wobble but there is no adjustment for this or room to center it.
If you mean the tire itself and not the wheel, the tire may not be seated (mounted properly) on the rim, causing it to wobble. Some tires are poor quality though, and aren't straight even if properly mounted. If you mean the wheel wobbles, the wheel is out true. It can be trued with a spoke wrench; there are videos for how to do that as well.

Last edited by techsensei; 05-18-16 at 11:55 AM.
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Old 05-18-16, 11:52 AM
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Thank you for that I will check what hole it is in. I am not sure if the tire itself is not true or the rim but the entire thing has a very small wobble to it. Plan on taking it on its 1st adventure over the weekend , so well see how it rides.
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Old 05-18-16, 04:16 PM
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Personally, on the bikes I own that have similar "v-brakes", I always put the spring in the hole that gives maximum spring tension. That seems to help give me more adjust-ability. Also, cleaning and greasing the posts are very important.
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Old 05-18-16, 10:26 PM
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There is a tension adjustment bolt on most V- brakes. It is usually small and located on the bottom of the arm.

Give the bolt on the brake arm that does not fully retract a turn to put more tension on the spring. This will pull the pad away from the rim. These bolts are used to center the rim between the brake pads. I just did this on my wife's bike this afternoon when I changed brake pads for her.

Linear Pull Brake Service | Park Tool
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