I have a Cosmo on my disk braked Ogre.
The next thing you might wonder could be how wide a tire they handle.
I've run 60x622 or 2.35x700c on mine with no issue on the Cosmo.
Hope this helps
Some suggested a while ago that the Tubus Nova was no longer being made, which was the complimentary front SS rack, which I also run.
Be aware that they will still suffer a small amount of oxidisation possibly due to my living coastal, but it hasn't turned to problematic rust.
They are not marine grade SS and are a non polished, matt finish.
Cheers