Emmanuel:
I cannot speak to concours and show bike authenticity.
For riding, I have had success with Sram PC 48, 58, 68. These are the same chain except for the nickel plating of the side plates. 48 = no plating. 58 = one side. 68 = both sides. I am told the intended purpose of the nickel is to provide a smooth surface to enhance index shifting with the increased quantity of cogs. And, yes, it does provide some protection against corrossion and sure does looke nice all polished and shiney.
Hope that helps.
Richard Cielec Chicago, Illinois
Emanuel Lowi <lowiemanuel@yahoo.ca> wrote: For those of you (like me) who enjoy riding your 1960s-70s classics frequently, what are your opinions about using period-correct vintage chains (Regina Everest etc.) vs. more modern chains like bushingless SRAM? And why? If you use the newer chains, what do you recommend for old-style 5 or 6 speed freewheels.
Emanuel Lowi Montreal, Quebec
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