I always found them to be squealers on my Avid Juicys and damned hard to fit.I even had to file the edges on a pair.Good stopping power/longevity from Sintered though
I second that, lotsa stopping power, I had them on a set of juicy ultimates, and were an absolute pain to get in.
2007 Giant Anthem 1
2009 Giant XTC 0
I've used the Fibrax metallics on XT, Juicy 7 and BB7. I can't recall any issues with fitment, and I've been very happy with the performance.