These have literally been used on my bike once. Even the pads only have a few wear marks on them, as in most of the braking surface is still shiny and hasn't touched the rim yet.
The reason I'm selling is that they I don't like to look of them on my white bike. Nothing to do with performace, just appearance. I also put them on my training bike but then took them off before riding as the whole idea of a training bike is that it is supposed to be heavy.
I can't give links to the actual brakes as the website is flash based.
That is slightly cheaper than 7800 brakes from chain reaction and a lot cheaper than 7900 brakes and at 160g a 45% weight saving.