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View Full Version : Help! Squealing from hell !!


vav
10-11-2015, 10:17 AM
Got me some new wheels. H+SON rims laced to CKr45

Brakes are Paul Minimotos with Slamon kool-stop pads and boy, the squealing is horrendous...people were clearing the way thinking they were being ran over by a truck.

I had CK classic hubs/Mavic CXP rims before and they squealed occasionally but not as loud and pitchy :confused::confused:

Tips? Solution(s)? Thanks in advance.

https://farm1.staticflickr.com/738/21905312559_b99413f68c_b.jpg (https://flic.kr/p/znGsfK)IMG_20151011_105805 (https://flic.kr/p/znGsfK) by VIAR VAPA (https://www.flickr.com/photos/63560619@N06/), on Flickr

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54ny77
10-11-2015, 10:21 AM
do those brakes have a concave washer at the pad holder to allow you just the slightest bit of toe-in? that'll usually solve it.

i'd also recommend a quick few wipes around the rim's brake track with 800 grit wet sandpaper, then wipe off with paper towel or clean rag with rubbing alcohol. you can do this with tire mounted, just be careful not to hit it with sandpaper or alcohol.

sandyrs
10-11-2015, 10:28 AM
do those brakes have a concave washer at the pad holder to allow you just the slightest bit of toe-in? that'll usually solve it.

i'd also recommend a quick few wipes around the rim's brake track with 800 grit wet sandpaper, then wipe off with paper towel or clean rag with rubbing alcohol. you can do this with tire mounted, just be careful not to hit it with sandpaper or alcohol.

Yes they do. You definitely need to toe them in. Looks like the back of the pad is closer to the rim than the front- that's a major source of squeal with those or any brakes!

pbarry
10-11-2015, 10:28 AM
^^ Toe in should help as the pads look mostly parallel to the rims. Also check the pads for glazing. I use a 6" fine file to remove glaze.

Lovetoclimb
10-11-2015, 10:35 AM
I threw those pads out and installed the Avid Rim Wrangler cartridge pads on my Paul brakes. Much better braking performance with no noise! something like $10/brake

johnmdesigner
10-11-2015, 10:35 AM
I'm no expert but why are the brakes mounted so far out on the posts?
Wouldn't such a distance produce flex and as such squeal and chatter? Also will those brakes work with road pads and holders?

DRZRM
10-11-2015, 01:07 PM
Yeah, I tossed those pads into my tool box and used a much shorter pad...can't remember which one, but I can check. They run so close to the rim that it is hard to toe in a pad that long. Never understood why they include that pad, seems like nobody can get them to work.

Whatever pad it was, it had a cartridge so when the pad wears I don't need to reset the toe in. Setup on these on my Zanc was kind of tough. I was an early mini-v adopter and the posts were a bit closer together than is preferable for the Pauls. They work great, but setup was harder than for most, especially with 23mm rims. I would not likely be able to run any wider.

zank
10-11-2015, 01:18 PM
I cut those pads to make them about equal on both sides. It gets rid of that sweaping bit on the leading portion of the pad, which is usually the culprit of the squeal and makes them easier to toe. I think salmon pads are excellent.

https://farm6.staticflickr.com/5594/15092433697_9fae24e346_b.jpg (https://flic.kr/p/oZEEJ6)AL001 (https://flic.kr/p/oZEEJ6) by Mike Zanconato (https://www.flickr.com/photos/zanconato/), on Flickr

Ken Robb
10-11-2015, 01:34 PM
I'll bet it's hard to modulate braking with those "slamon" pads. :D

YesNdeed
01-01-2019, 01:13 PM
I'm having the same problem with Paul Mini-Motos and the salmies they came with. I'd like to give the Avid Rim Wrangler pads a try, as previously mentioned here, but I thought I'd re-up the old post and see if there any newer/better recommendations for pads that allow more modulation and toe-in. Anyone have a suggestion?

john903
01-01-2019, 01:25 PM
I have the the Mini motos with the salmon pads too. I set them up real close to the rim and a tad lower them normal with no toe-in and no problem. You may know this but cleaning the rim and pads also helps. I am using Ambrisio Nemesis alloy wheels set (27c) tubulars and Mavic open pro wheel 30c clincher set depending on my mood. They can be a bit fininky to dial in but once they are set I really like them and forget about them and just ride.

jtbadge
01-01-2019, 01:26 PM
Those pads are long and flexible, and as such need lots more toe-in.

Also, I agree with the previous post that mentioned the pads being too far out. Adjust the arrangement of the washers/spacers on the pad arm so that the caliper arms start closer to the braking surface.

YesNdeed
01-01-2019, 02:14 PM
Well, adjusting the pads again can’t hurt, but I adjusted them originally with so much toe-in that the pads have radical wear to them, and could stand to be replaced. I’m probably doing something wrong, and it never hurts to review my skills as I am likely among the world’s worst toer inners. YouTube to the rescue.