Originally Posted by
curiouskid55
Shimano does not recommend the use of "master links" of any kind.
Campy doesn't either, but there is absolutely no good reason not to as long as you get one that fits properly.
The KMC missing link, Wipperman connex or Forster superlink model 3 will fit a Shimano, KMC or Wipperman chain. The superlink model 4 or the special KMC missing link made for the Campy 5.9mm chain will also fit a SRAM 10 speed or Campy 5.9mm chain.
I even use the Campy/SRAM compatible links on 11 speed chains.