Just a picture of my probably-contaminated pads next to brand new pads:
The upper ones look like sinter metal pads and the lower ones like organic. Or am I wrong?
You are wrong. Both are organic. I also have a pair of metal pads if you want me to take a picture for comparison.
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So the color change is from the oil contamination? 
wow
I think so, yes. Yesterday, I have cleaned my rotor with some Muc-Off disc cleaner. The towels I used turned black, too. I guess lots of Schlumpf grease has leaked from the hub and contaminated the rotor and pads.
Late comer here. Very interesting to read up on this thread.
I came across it since I’m planning to build a carbon rim G36 with the latest generation Schlumpf (100mm/disk brake). I’ll likely open a new build thread to ask a few questions once I get the ball rolling. For now, I’m just waiting to hear back from Florian about my order form.
That aside, any new information on the 220mm rotor? @mindbalance And any movement on fixing oil leakage/brake contamination? @rogeratunicycledotcom Seems it may be pertinent for my build. I’ll add my name to the list of people for a 220mm rotor if that helps production costs.
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Hey 
So I got the 220 rotor as at that time it offered more clearance on a 100mm hub in a 36” wheel build. For a 125mm hub the clearance at 203 is fine - so the potential benefit is how 220 reacts to braking and dispersing heat. But it is all going to be much of a muchness I’d say. Not not a big brake user even if I enjoyed pushing this new rotor option. That’s just the geek in me.
@Maxence might have more real world 220 rotor feedback for you…
You can email BrakeStuff and order rotors from him - it just will take ages to get them as they likely won’t be a priority and I think he has another job. So an order will eventually be fulfilled but patience is very much the order here.
As for the oil thing. I had a call with Roger a long while back now on a stage where I’d test clearance on hubs etc but sadly I never got around to actually sitting down and figuring it all out practically speaking.
The sense is there is a way to put in some kind of shield circle strip - think using the stuff they trim round window insulation edges - which I guess but deflect / mop up oil.
More to do there 
Look forward to seeing your build come together!
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BrakeSTUFF is closing down March 31 
Seems like it isn’t working as a business. Shame to see custom options like this disappear.
I wonder if we can persuade Florian to adopt the design and features of the asymmetrical rotors made by Torsten.
Wow, what crazy timing! He announced this on his Instagram an hour ago.
However, it does state “Individual orders will be accepted and processed until February 15, 2025.” If I’m quick on the draw maybe I can order one last set before he closes shop?
But before making any hasty decisions, I’d like to hear @Maxence 's thoughts on the 220mm rotor.
Hi! Sad news. I have just bought a second-hand 2023 Schlumpf hub. I’ll have to quickly place my order to get a 203mm rotor.
Regarding my 220mm BrakeStuff rotor, I don’t have much to say. It works great 
It doesn’t seem to deform as much as Schlumpf rotors. It’s hard to compare with other rotors as I don’t have played much with 220mm rotors from other brands, but it doesn’t feel worse than the 220mm Hope rotor I have used on my freewheel 36er (and removed since as I have preferred a 203mm Shimano rotor).
Anyway, that’s the best choice for 2023 Schlumpf hub on a 36er.
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Are there any current alternatives for Schlumpf disc rotors? After my experience with my brand new Schlumpf rotors (1 warped, the other cracked) I’m looking for alternatives. I wish I had ordered the BrakeStuff rotors before he closed up production.
I emailed Florian regarding this and I’m hoping the warranty covers replacement of these rotors. But if not (or maybe even if it does) I’d like to know what my options are.
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I had to true my Schlumpf rotor straight out of the box to prevent it from hitting my brake on each rotation. I wasn’t impressed.
It would be nice to have another option.
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I’m looking into making my own disc rotor adapter. My thinking is I could take the external edge from a floating disc and install a CNC machined middle section that fits the Schlumpf hub. Although I’m not sure how I would remove the rivets from an existing floating disc nor whether the adapter needs to be heat treated, too.
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I only really have experience with Hope floating rotors, so I can’t comment on other makes… The inner section of Hope discs is aluminium so I don’t think you would need to heat treat it if you were getting something made to replace it. There will be heat transfer to it but it will be much different to a fixed disc (which is the whole point).
Removing the floating outer would probably just be a case of drilling out the rivets – the bigger issue may be getting other rivets to replace them if you don’t want to make your own. You could maybe get ones direct from Hope though, I’m sure they’d be willing to help – you could maybe persuade them to sell you the outer disc itself,
One of their vented discs and a V4 calliper would be very nice on a Schlumpf 
Here is a link to their range of discs, the video is quite interesting:
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@aws may help as well. He has done such a job before.
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I’m in contact with BrakeStuff for my geared hub project, I have some prototypes under production there and Tosten told me he is in discussion to sell his company
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I created my own disc mount for a disc-less Schlumpf FS hub many years ago. Still works well with the first disc. Written in german, just look at the pics:
Disc mount for vintage Schlumpf FS
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Wow nice work! Very well done! The disk mount isn’t much of an issue anymore for the older generations since the Brakefast 2.0 is available, and in both 36h and 32h. But the disk itself it problematic on both, the latest Schlumpfs and the Brakefast. For the Brakefast we use a Shimano Icetech rotor, we drill the rivets and screw the braking surface on the adapter.
An aluminum spider that fits the Schlumpf hub and a Shimano Icetech rotor could be a decent option, we’d need to drill more Shimano rotors!
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So, related to what I said about mod’ing Hope discs above, here is a very recent Hope factory tour by Rob Warner (of mountain bike fame)…
I make no apologies for being a massive Hope fanboi (the first Hope components I bought were a set of tandem hubs in the mid '90s… which kind of dates me a bit). I just think this is just excellent.
You can see them laser cutting brake discs and at one point and also heat treating them so you can get an idea of what is involved, I also think you see the rivets they use for holding the floating rotors to the centre (he mentions needing six per disc).
Anyhow, it is a long video, but I certainly think it is worth a watch if you have any interest in high end bike components or CNC machining etc.
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I drew this up a while ago. This would be the low budget version, lasercut, places the disk at an offset instead of a spacer. You’d need to do some figuring out for what hardware to use. aluminium would be nicer of course, wouldn’t be so hard to design that 
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