Fred,
Check out the SRAM chains, they're the successors to Sedis and Sachs.
The previous model SRAM PC48, PC58 and PC68 chains were very similar to Sedisport chains. They work well with 6, 7 and 8 speed cogs (also 5 speed freewheel too). They're still available online. The PC58 chains had nickel plated outer links and the PC68 chains were all nickel plated.
The replacement models are the SRAM PC830, PC850, PC870 and PC890 chains. They are similar to the old Shimano Ultraglide chains with wider side plates than the previous model SRAM chains.
PC870 chains have nickel plated side plates and PC890 chains are all nickel plated.
Both the older and newer SRAM chains have worked perfectly on every freewheel and cassette I've used them on.
Chas. Colerich Oakland, CA USA
Fred Blasdel wrote:
> I got some 6 and 7 speed Sachs freewheels to use on my '82 ALAN Super
> Record, but the mediocre taiwanese chain that I got the bike with doesn't
> quite mesh correctly -- it skates over the teeth easily when shifting into
> the larger cogs. There's no chain or cog wear to speak of, and the chain
> meshes perfectly with the Dura-Ace 7400 freewheel that came with the bike.
>
> I'm looking to buy an appropriate chain, and would love to buy one in good
> condition from a list member (NOS is unnecessary, this is a rider). A chain
> made in France with a shiny silver finish is strongly preferred.
>
> I've heard that the Sedis chains are perfect for this application and
> they're period appropriate.
>
> I'd also heard that the Sachs PC-68 chain was identical and made in the same
> French factories.
>
> Anyone have advice and/or a chain to sell me?
>
> -- Fred Blasdel in Seattle, WA