6-7 speed crank compatibility with a 10-speed build?
I hope to use a pair of 6-7 speed vintage Sugino-manufactured cranks in a Campy 10-speed build with Ergo shifting. I intend to use modern, ramped and pinned 10-speed TA rings, compact, 50-34.
Do I need to reduce the spacing between the rings? I'd very much like to accomplish transparent, factory-equivalent performance. Will a 10-speed chain drop between the rings if I don't reduce the spacing? If I do need to thin the spacers, what is my target spacing? Yes, I am doing this for a classic appearance. The cranks are Specialized "flag" style, and the build is a Della Santa.
I like the simple approach, good thinking, but I don't see the 7700 being available in a 110 compact, only in a full-sized crank? (Plus, I have the arms, but that doesn't mean I absolutely have to use them.)