Unicyclist Community

Go Back   Unicyclist Community > Unicycling Discussion > General Unicycling Discussions

Thread Tools Search this Thread Rate Thread Display Modes
Old 2019-08-02, 11:18 PM   #31
caseytronic's Avatar
Join Date: Jun 2014
Location: Southern Arizona, USA
Posts: 170
Pad Orientation to Reduce Squealing

I realize this reply is about 10 years too late, but I recently found this thread useful in trying to solve squealing on my rim-braked G29.

I started with an anodized Surly Rabbit hole rim (a great modern tubeless comaptible rim that is rim brake compatible) and a Triton triple frame with a magura rim brake.

Build Details here:

Squealing was so bad I could feel the vibrations in the seat.

Sanding the anodization off of the rim, and sanding the pads slightly (suggested in this thread) reduced the squealing a lot, but not completely.

After much trial, error, and bitter cursing I stumbled upon a solution to the squealing - pad orientation.

I found that if the pads were perfectly parallel to the rim at center of the pad then the squealing would stop.

In other words, If the pads were angled so that the front was even slightly higher up the rim than the back (or back higher than the front) the pads would squeal.

Hopefully this will help any of you rim brake hold-outs still out there.
caseytronic is offline   Reply With Quote
Old 2019-08-07, 10:00 PM   #32
UniGeezer - Not "2" Tired
MuniAddict's Avatar
Join Date: Aug 2006
Age: 64
Posts: 14,701
If your wheel is true, remove and inspect your brake pads, and replace if significantly worn. Otherwise, if they are slick or have some uneven wear, use a sanding block with 100-120 grit to even/level out, and remove any shine, then remove any residue with rubbing alcohol. Reinstall pads and toe them in slightly, in direction of travel. Clean rim sidewalls with rubbing alcohol. Works for me.
Happy Birthday Terry! Every year you get cooler, younger and unicyclier!
Be our muniprohpet for many years more.
-Dani Buron


Last edited by MuniAddict; 2019-08-07 at 10:05 PM.
MuniAddict is offline   Reply With Quote
Old 2019-08-08, 02:52 AM   #33
caseytronic's Avatar
Join Date: Jun 2014
Location: Southern Arizona, USA
Posts: 170
I also found that one of my Magura clamps was a tad loose, which also contributed the vibrations and squealing.

I appreciate the good brake pad advice above. I agree that this is the most obvious cause of squeal. I forgot to mention that I had already cleaned and sanded the rim and pads before taking the other measures in my posts.

I know toe-ing in the pads works well for typical rim brakes, but I've heard conflicting advice as to whether it works for the Magura hydro rim brakes. Ill have to experiment with this a little sometime.
caseytronic is offline   Reply With Quote

hs33, magura, pig, squeals

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
[Wanted] HS33 Magura brake Jonny_H Trading Post 11 2008-09-10 06:39 AM
Magura HS33 drac General Unicycling Discussions 9 2007-09-01 04:34 AM
want magura hs33 brake oldandmoldymat Trading Post 5 2006-08-10 07:47 PM
[WANTED] Magura HS33 cyberpunk Trading Post 0 2006-02-11 07:44 PM
magura hs33 on ebay tennisgh22 General Unicycling Discussions 6 2004-06-03 08:15 PM

All times are GMT. The time now is 12:29 PM.

Powered by vBulletin®
Copyright ©2000 - 2015, Jelsoft Enterprises Ltd.
Copyright © 2001-2019 Gilby
Page generated in 0.07899 seconds with 12 queries