So how do you best stop brake squeel in the wet .
cos my new hopes sound like someones kicking ten shades of shit out of a seal pup ! :/
Clean the pistons, pads, disc and spring.
The squeal because they are vibrating rather than sitting square on the piston/disc.
Had this on my XT breaks for an age.
A thorough clean of disks and organic pads did the trick for me.
if its wet most disc brakes squeal, not really much you can do apart from not ride in the rain!
ive had some make noise in rain, some not, just pot luck really!
Are they sintered or organic pads? My organic Hope pads squeal a fair bit in the wet, but the sintered ones are much less noisy for some reason.
Seems a random even to me!!! Worst experience was a demo bike last year. Not being careful with spray water disbursant or lubricant seems to cause the odd problem ie if it hits the brakes.
As above re cleaning and when refitting the pads, a smear of Coppaslip, or similar, on the back of the pad. This subtlety glues the pad to the piston and reduces the tendency for the pad to vibrate.
Also, disc brake cleaner or acetone to clean the disc surfaces .
Cleaning all surfaces with an alcohol based cleaner is vital, to stop brake squeal I use stuff called rubber grease,(red in colour). its used for coating the back of the pad surface but will not attack/damage rubber seals or gaiters,You can buy it through ebay or any good car parts or motorcycle parts supplier. hth
In the wet just accept it. You'll waste hours trying to stop it and never succeed fully.
As above ^ but new pads...maybe not bedded in yet. Go down a very long steep hill breaking a bit.
Brake squeal/noise is almost unavoidable.
Car makers spend hours and hours and hundreds of thousands of pounds and car brakes still make noise.
Mountain bike brakes have much less investment and development - hence they are much more likely to make noise.
Don't worry about it - the noise may change or go away completely as the pads/disc wears or environmental factors change - wet/dry etc...
Don't brake 😀
Dont put grease on the back of the pads, it does sod all accept risk contaminating the pads and damaging the seals.
The vibration is usually caused by uneven pad material on the rotors which gets worse the more you use them just like braking bumps on a trail. You need to sand the rotors with sandpaper (don't go crazy) and lightly do the pads then clean them with IPA alcohol, centre the calipers evenly and dead straight then bed them in properly by getting them hot then doing 10 to 20 hard brakings from 20ish mph but don't lock up or come to a full stop. PITA but worth it. Sintered are bad for noise, organic are much better but aren't durable enough in wet/mud/grit. I've had great results with uberbike race matrix pads as they're quiet and feel like organic but last nearly as long as sintered.
Clean them, dab a tiny bit of copper grease on the back of the pad.
Job done.
learn to play tunes on them