Originally Posted by
byrd48
I know this one has been posted a gazillion times, and I've researched it, but nonetheless, I still have problems with the rear cantis squealing like crazy. The rims are clean, I took off the pads and sanded them to an even finish. They are toed in, but yet they still sqeal really loud. The front are no problem. The front rim is a higher quality Sun Ringle double wall while the rear is an off the rack wheel from PB that has a wear indicator groove (which also deforms the brake pads as they wear). The only other difference is that the front canties get 'pulled' since they are in front of the fork, while the rear ones get 'pushed' being behind the seat stays. I guess the next step is to take some steel wool to the rear rim and try to scruff it up a bit.
Do higher quality rims have less tendency to squeal?
Thanks!
Jon
What brake is it? Some brakes arm will just squeal. Avid Shorty 4s come to mind but there are others.
Another cause may be the frame. If the frame is too light in the brake area, the seat stay can twist which causes the toe of the brake to lift off the rim and chatter. This is a fairly rare problem, however, compared to the caliper itself.