Originally Posted by jamesdak

Well, my experience on at least 4 bikes running 11 speed setups says otherwise. I'm using KMC XL chains on them with no problems at all. One setup is Ultegra, one is Athena, one is Super Record, and one is a mix of Super Record.

Then looking at my picture archive I can see I ran a SRAM chain with the Ultegra build of the NOS Vitus Argal. It worked great and was very silent once we fixed the problem of the FD rubbing on the crank arm. Very tight rear end and tolerances on this 1990's bike running that 11 speed setup.


Really short and tight rear end on this one.

SRAM chain/Ultegra 11 speed groupset.