Brake squeal

[Glorian]

Been a while since i posted here which is nice

My rear brake has recently started to squeal intermitently. Not every time i press the lever but enough to start to bug me.

I've had new pads on recently and i've sprayed some brake cleaner over the disc also, but not much seems to be going on.

[mealexme]

Hey Glorian

The squeal usually comes from the vibration between the brake pads and the pistons in the caliper, so it's best to put some grease on the BACK of the pads - the bit between the pad and piston, but it might also help to put some on the pin that the pads sit on. Basically, anything the pads touch EXCEPT THE CALLIPERS.

[Glorian]

I usually put quite a bit on the back of the pads. Might take them off and re-grease everything just to be sure

[eastanglianbiker]

it could also be the pads glazing up so if you are taking then out might be worth giving the pad surface a little rub with coarse sandpaper or something similar to break up and glaze that could be on them

[megawatt]

Some pads come with anti squeal shims as well.

[Hoggs]

Sounds like the bikes knackered. You should buy a nice new green one

[Fozzie]

I put a smear of copper grease on the back of the pads when I reassembled the caliper but squeaks do happen as after a couple of washes the grease is washed away

Brake cleaner is like a 50cal to copper grease so just take the caliper off, drop the pads out and give the backs a clean with some new grease. Just clean up the piston while you're there to put off having to do it again and that should solve it.

[Lumor_uk]

I put copper grease on the backs of mine then ragged the poo out of them. Fixed mine.

[Guest]

Use red rubber grease on pins, not copper slip

[megawatt]

Red rubber grease is for brake seals, not steel pins.

[Guest]

Many sliding pins have rubber boots