...I use it on about 20 different bikes equipped with Campagnolo NR. the derailleur cable ends are small enough to fit just like the old Campy specific cables. No issues I can think of. The lengths are all long enough to fit every one of my bikes, with plenty of room to shorten them. I buy it in bulk, and I buy the mid range stuff (plastic lined housing and stainless die drawn smooth surface cables). Don't buy their cheapest stuff, because the mid range is not that much more expensive and it does work a little better.