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Brake squealing - exhausted all remedies

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Brake squealing - exhausted all remedies

Old 01-09-08, 06:46 PM
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furiousbob
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Brake squealing - exhausted all remedies

I'm running KoolStop MTB salmons on a Shimano 105 brake on a non-machined rim and ever since I broke in the pads, they've been squealing...not squeaking. Braking a bit too hard (a bit more than the amount you'd use to slow-down) would result in squealing that sounded akin to firecrackers or piccolo-petes...literally.

I've tried sanding the brakes, scotch-brite-ing the rims, cleaning the rims, adjusting toe-in half a dozen ways, adjusting brake-lever reach, and last of all, bringing it in to the shop. My LBS simply told me that he'd ask around after he himself tried fixing it.

I know a lot of you are gunna say it's due to the fact that it's a non-machined rim BUT I've seen other non-machined rims with u-brakes and they work perfectly fine.

BTW, the rims are about...2 months old, the brakes about 2.5 months old and the pads about 1 month old.
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Old 01-09-08, 08:01 PM
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Truthfully, my solution was to go to discs. I have a Schwinn Sierra 700GS that had loud front brakes. All of the 'improvements' I did only served to make the noise louder.

I finally put a BB7 on and the howl went away.
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Old 01-09-08, 08:08 PM
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I'm riding a fixed gear track bike with a single front brake. I only use the brake when I'm coming home from work and too tired to use my legs to brake or if I'm bombing a hill and need some assistance. A disc brake wouldn't make too much sense on my bike otherwise I would.
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Old 01-09-08, 08:15 PM
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I had the same problem on my Fuji with salmon koolstops on the front. I'd adjust them and they'd be ok for a day or so, but then go right back to squealing. I ended up going with a pad that was a little stiffer material and that took care of the problem.
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Old 01-09-08, 08:16 PM
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Got a recommendation for a different pad?

I actually had a friend fix the problem by pulling some magical toe-in crap on my bike but the squealing came back a day later.
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Old 01-09-08, 08:27 PM
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I was doing toe-in adjustments a couple of times a week. I've got the black Shimano pads on the front now...no more squealing. I love the salmon koolstops, I have them on most of my bikes, but in this case the combination of the avid shorty cantis, rims and carbon fork just wasn't suited to them.
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Old 01-09-08, 08:31 PM
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Is there a specific Shimano pad or will my old Shimano 105's work? I don't have them anymore but they're easy to get a hold of at the LBS.
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Old 01-09-08, 08:41 PM
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Try Koolstop black pads or one of their all condition pads (comes in diff colors, like red, silver, yellow, and blue) or dual-compound models. Some find greasing the caliper pivot shafts and washers as well as the threads and washers of the brake pads help dampen/eliminate the squeaking.
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Old 01-10-08, 05:12 AM
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Originally Posted by furiousbob View Post
I'm riding a fixed gear track bike with a single front brake. I only use the brake when I'm coming home from work and too tired to use my legs to brake or if I'm bombing a hill and need some assistance. A disc brake wouldn't make too much sense on my bike otherwise I would.
Sez who? The hipsters? Piffle! Why trifle in the affairs of the insane? Trend setters forge new territory, not follow the heard mentality.
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