And I’ve never seen them since!Good luck in your quest, they seem to be like rocking unicorn poop. @ibbz owned the only set of Quarz I've seen outside of the catalogue. I've been looking for them myself, along with a set of original chainrings to complete my Quarz set up. No luck as yet.
I guess the rise of the V-brake at the same time as Quarz came out, as well as the subsequent Sram takeover means not many were made/sold?
Not at all, but thanks anyway.Here's a set of Sachs Rival I came across on my morning trawl, not exactly what you're looking for... and in the USA... and just one pair....
https://www.gringineer.com/sachs-rival-cantilever-brake.html