Magura pad wear

[TheRealPoMo]

Anyone's old pads look like this on your 4 piston units? Small unworn bit where it does not contact disc.

 

[Gary]

you have your caliper spaced too far out.
change to the correct adapter or remove spacers

 

[TheRealPoMo]

Yeah I thought that but it is as the factory put it, which is why I asked other owners.
There's no spacers as such, just the adaptor between the caliper and the fork leg.

That probably explains the persistent zinging noise - outside edge of rotor touching side of unworn pad.

 

[Funkeydunk]

no spacers on mine.

 

[Frankieboy]

Is the adaptor & rotor the same size, I.e. 203 / 203 or 200 / 200? Looks like you may have 203 adaptor with 200 rotor?

 

[Jackware]

View attachment 35006
no spacers on mine.

There is a spacer there, but it's a different design and offsets the caliper vertically.

 

[TheRealPoMo]

Well, I believe it's a 200 rotor (from the specs). I'll see if I can verify with part numbers. I would think mine would not be the only one though given the whole shebang is OEM.
Maybe I'll grind 2 mm of the face of the adaptor bracket.
Maybe I'll ask the LBS I bought it from.

 

[TheRealPoMo]

OK, turns out it's a 180.
All the part numbers check out for that combination.
The new pads now installed don't appear to have the same degree of overlap of the disc - vernier calipers say maybe about 0.4mm, though it is a fiddly measurement to make.
I'll ask the "experts" at the shop but if I have to take the pads out every now and again and grind the unworn material off, I can live with it.
Worst case I can grind a mm or so off the bracket face, though if I don't get it perfectly flat and square I'll probably have issues adjusting caliper position..
At least I think I found the "zing" - I know others have had this so maybe that helps.

...or I could look into a 203 setup - doesn't look to dear and might help going down the eastern Camp Mountan break....

 

[Gary]

the pad material shouldn't have ANY overhang on the outer disc

I'd just file 1.5mm off each side of the adapter

 

[TheRealPoMo]

the pad material shouldn't have ANY overhang on the outer disc

I'd just file 1.5mm off each side of the adapter

Yeah I know - It'l nag me if i don't.
I guess I couldn't go too far wrong with emery paper on a glass plate.
What nags me more is why it left the factory like that.

 

[Gary]

emery paper? I'd just use a hand file

Magura do lots of stupid things

 

[JTB]

Yeah I thought that but it is as the factory put it, which is why I asked other owners.
There's no spacers as such, just the adaptor between the caliper and the fork leg. View attachment 35001
That probably explains the persistent zinging noise - outside edge of rotor touching side of unworn pad.

What happens if you put that spacer on the other way around?

 

[TheRealPoMo]

What happens if you put that spacer on the other way around?

No spacers - just the adaptor. It specifically says "this side up" so can't monkey with that.
Ordered a 203 disc and adaptor so I'll see how that goes.

 

[TheRealPoMo]

Put the 203mm disc and adaptor on.
The 203 adaptor QM42 needs shorter retaining screws to the fork than the stock 180 one so I had to improvise some spare 316 allen screws and a couple of washers.
Also changed the pads from 9.P to 8.P. The 8's use retaining pins (included) and are 4 descrete units rather than a set of 2 with 2 pads on each.
It looks as though there is not as much overlap of the pad to the disc now - I guess a bit of wear will show.

Bit of a bargain really - about $55 AUD for the adaptor and the disc.

 

[Markymark]

the pad material shouldn't have ANY overhang on the outer disc

I'd just file 1.5mm off each side of the adapter

Lol Gary, how many people have a metal file let alone a vise for holding the adapter these days.
If I was still lived with my ex wife I could of set it up in my milling machine and accurately machine it to size.
That's just showing off though.
Cheers, Mark

 

[Shinn]

Having a difficult time here...any thoughts? Thanks in advance.

Front and rear MT5, Magura HC 203mm on both F/R I have the 180 to 203 adapter on the rear. the pads are level with the top of the rotor on both front and rear calipers so I am at least fairly confident I have the correct adapters.

2020 Levo SL

 

[VWsurfbum]

As I replied in the other thread, so won't repeat. a picture of the caliper on the bike might help though?

 

[Stiggy]

I Have a totally stock 140 Race 625 with (based on the build spec) 203 rotors. Just took the pads out for the first time yesterday and have the same issue i.e lip/unused material at the top of the pads and a zinging noise from the rotors. As others have said there is no adjustability in the system that I can see other than calliper L/R but not up/down so a bit lost.. Is this a build issue with the incorrect spacer size?

 

[kneesliding]

Normally the Magure PM adapters have the size printed on the inside, if theres a lip, then the adapter is wrong.
Sounds like 200 rotors with +23mm Adapters.

On my Yeti SB150 I have a Rockshox ZEB, that has 200mm standard so no adapter needed, to get the 203mm rotors, 1.5mm spacers are needed....

 

[kneesliding]

Should be on the Rotors, normally the size is printed/echt into the rotor somewhere.

 

[Stiggy]

Thanks