So, New brakes on the fatty (Magura MT Trail). Took the bike out in the snow on Saturday, but I obviously didn't get enough heat in the pads to bed them in properly. They now squeal like a piggy at a hogroast. And its really really bad, much worse than owning Hope's.
Do I need new pads or can I get some fine sandpaper on them to sort the noise out?? Will some copper grease on the back of the pads help at all??
Cheers.
I reckon if you sand off any glazing on the surface and try again they should be good. Wouldn’t go near them with grease personally.
Magura's have magnets holding the pads in so no to copper grease (never needed this on a MTB brake!).
You should be able to rescue them, I'd probably try a proper bedding process first. FWIW the MT Trails I have don't squeal.
I've rubbed dirt into the caliper before (with a splash of water) and give them a good hard bed in. It does help that I live on a hill but riding around with your brakes pulled a bit can also work.
I’ve rubbed dirt into the caliper before (with a splash of water) and give them a good hard bed in.
Hope used to take their own mud to races to do this - works really well ime
Magura seem to need more bedding in than other brands. Can't remember exactly but I followed the instructions that came with my MT Trails - gave me a good workout!
Might take even longer in the cold & snow?
Put copper grease on the discs, it'll stop the squealing 😉
Might take even longer in the cold & snow?
We noticed this on a group gravel ride at the weekend. -4°C and all discs were absolutely howling even though conditions were dry. Once you got some heat into them it stopped.
Not sure if it's purely the rotor/pad being cold that causes the howl or if there was condensation or moisture on the rotor causing it.
My brakes were howling in the snow on Sunday aswell. I messed about trying to realign the caliper to no avail as it was slightly out (but not causing a problem previously).
Is this a normal thing in sub zero temperatures then?
Happened every time I hadn't braked recently.
my M### up
Just wondering what the M word is? Minge?
Put copper grease on the discs, it’ll stop the squealing 😉
well, it'll stop the brakes squealing...
I had a similar issue with some magura MT7 brakes recently, the first ride on new pads was in absolutely horrendous rain , and as such the pads glazed and started squealing really badly, even when everything had dried out on a subsequent ride. I sorted it by clamping a metal file in a vice and rubbing the pads on the file a few time, then went out and bedded them in properly. They are now silent.
Just rub them on a concrete floor
Same here. First ride on my new Lauf yesterday. Did my best to bed the pads in , difficult when it’s as icy as it is. Back was squealing like a banshee til I got some heat into it. Not sure if it glazed and never had a problem before. I’ve realigned as both were slightly off centre. Sram Force brakes.
Just rub them on a concrete floor
Also use the dirt that's in a pile underneath where you keep your bikes as a de glazing agent.😉
Well we are no nearer what swear avoidence this M### is and not Minge as not enough letters?
Not bothered about the brakes 😉
Intriguing, isn't it 😀
When I had Shimano brakes I was oblivious to the need for bedding in. I used to chuck a new set in and ride with no issue. I then moved to Magura and don't think I ever successfully got them working properly despite finding all the info on bedding in. I am now on Hope and struggle with bedding those in as well. I have a set of new Tech 4 which I have just changed the pads in the back, forget the 30% more power, I have 50% less power.
get SRAM brakes, shimano are too grabby.
When I had Shimano brakes I was oblivious to the need for bedding in. I used to chuck a new set in and ride with no issue. I then moved to Magura and don’t think I ever successfully got them working properly despite finding all the info on bedding in.
This will be largely down to pad compound, the pads have to get hot enough to coat the rotor with a layer of melted pad material. I run Shimano brakes on multiple bikes, mostly using Nukeproof semi-metallic pads. They need bedding in to give their best performance.
get SRAM brakes, shimano are too grabby.
This will depend on the specific Shimano model and the pads you are using. My commuter bike has basic Deore brakes with stock organic pads. Not grabby at all, but not especially powerful. One of my other bikes has Saints with semi-metallic pads. Very powerful, a bit grabby.
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Cheers for the tips guys, loads of good info.
Didn't realise the Maguras had a magnetic system for the pad retention, so I'll avoid the copperslip. 🙂
I would let you know what the M### is, but it's a family site.........
