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Kool-Stop thinline brake pad toe in or out question.

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Kool-Stop thinline brake pad toe in or out question.

Old 08-12-12, 11:27 PM
  #1  
lungimsam
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Kool-Stop thinline brake pad toe in or out question.

Hello,

These pads have a pointy "plow" on the back end (facing back of the wheel), which is supposed to wipe off the grit and water so the rest of the pad can work better.

Literature says to get pads aligned with rim while squeezing the brake lever, then tighten.
I did this. Front and back end of pads meet rim simultaneously.

I had some chatter on the front brake. So I toe-ed it out, so the back of the pads, where the plow is, contacts the rim first, but now it squeals when I am just about stopped. Not the whole time braking, but just before the wheel stops rotating.

Now I am thinking to try to toe it in, but the plow would hit last in that case.

What should I do? I would imagine the plow has to hit the rim first. Thanks for any advice.

http://www.koolstop.com/english/thinline.html

Last edited by lungimsam; 08-12-12 at 11:31 PM.
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Old 08-12-12, 11:51 PM
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The plow tip is *supposed* to help it automatically set the toe-in when you install it that way, but I have to toe it in more to avoid squeal.
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Old 08-13-12, 12:41 AM
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Yeah, I also have to toe mine in to stop the squeal. I did mine with a penny between the back of the pad and the rim, and that thickness worked pretty well.
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Old 08-13-12, 12:56 AM
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put a P coin under the tail of the brake shoe and then tighten the bolt. and so have the toe,
really the trailing edge opf the rotating wheel, contact first.
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Old 08-13-12, 08:36 AM
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So sounds like the plow on the back of the pad should not be contacting the rim first, if I understand correctly?
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Old 08-13-12, 08:43 AM
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Originally Posted by ThermionicScott View Post
The plow tip is *supposed* to help it automatically set the toe-in when you install it that way, but I have to toe it in more to avoid squeal.
+1. Toe-in is needed. I ignore the plow feature and put a thin shim under the back of the pad to create some toe-in. The brakes are are chatter free and stop well.
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Old 08-13-12, 09:18 AM
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When I install those pads, I frequently cut the "plow" off altogether. I've never really found it to do much but get in the way.
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Old 08-13-12, 10:18 AM
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Originally Posted by Glynis27 View Post
When I install those pads, I frequently cut the "plow" off altogether. I've never really found it to do much but get in the way.
+1. I always toe-in cantilever pads more than what happens automatically with the plow tip. I've found this is necessary to prevent squeal on cantileverss. On one bike, the pads needed a lot of toe-in and the compression of the plow tips, as I squeezed the brake lever, was preventing me from getting that much toe-in. I ended up using a sharp chisel to shave off the plow tips, and it went fine after that. I haven't missed the plow tips on that bike.

One trick I came up with to help set toe-in was to use several layers of masking tape on the rim (typically about 8 layers). I used the better grade of tape that is designed to peel off easily without leaving any residue. That way, the shim stays in place while you're adjusting and tightening things.
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Old 08-13-12, 11:32 AM
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Originally Posted by Spld cyclist View Post
One trick I came up with to help set toe-in was to use several layers of masking tape on the rim (typically about 8 layers). I used the better grade of tape that is designed to peel off easily without leaving any residue. That way, the shim stays in place while you're adjusting and tightening things.
That's a really good idea! Definitely doing that next time I install a set.
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Old 08-13-12, 02:37 PM
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I toed in using a thin piece of cardboard. I can see the front end of pad contacting rim befor the plow.
But upon braking "hoooowwlll".

I will try doing them flat again and see if that is better. I called Kool-stop and they said flat. Toe-in, if.
Maybe they just need some time to break in?

It is a Paul center pull, if that makes any diff.
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Old 08-13-12, 03:07 PM
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Originally Posted by lungimsam View Post
I toed in using a thin piece of cardboard. I can see the front end of pad contacting rim befor the plow.
But upon braking "hoooowwlll".

I will try doing them flat again and see if that is better. I called Kool-stop and they said flat. Toe-in, if.
Maybe they just need some time to break in?

It is a Paul center pull, if that makes any diff.
Mine squealed after the LBS adjusted the new pads. I normally adjust my own and I don’t want to go into why I let them do it right now. So I decided to ignore the squeal as long as the bike stopped. I figured I would adjust them myself later. Later never happened because the brakes quit squealing on their own. I guess they got broke in.
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Old 08-13-12, 09:13 PM
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I readjusted them flat against the rim, like KoolStop suggests doing first. It seems to be better. They actually work great now, just makes some noise now and then. I will wait it out and see it they settle down after they wear in a bit.

I am afraid I am going to strip something if I keep repositioning/tightening over and over again trying to get it just right.
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Old 08-14-12, 10:47 AM
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Another thing that I found helps reduce brake squeal is to make sure that your rims are absolutely clean and free of any oil or grease. Rubbing alcohol works well.
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