Could someone point me in the right direction for set up information on the Campy Portacatena device. I'ts obvious how to install it, it's the frame spacing that I'm not clear on. For example the Campy instructions show a 6-speed freewheel, which means at least 126 spacing, but I get the impression that one might need 130 spacing to accomodate the Portacatena piece as well.
Anyway, I'd appreciate a little help.
JIm Ready Cupertino, CA Graduate of the Spring 1974 Eisentraut frame building class and KOF nut.