Everyone loved Sedis/Sedisport chains back in the 80's They shifter so well with most drivetrain brands and was cheap too. I notice there seems to be a bigger preference for KMC chains these days. Sedis chains can still be found for resonable prices, but I suspect the NOS supply will eventually start getting smaller, specially for the later narrow SL version which I run my 7 speed bike with. It shifts and run as smooth as buttah!

Chombi