Originally Posted by
KiwiB
Hmm seems I missed part of your post Andy.
What's C_C? Cog to Cog distance?
With the potential spacing issue you mentioned it sound like the campy's might be the easier project. I'd welcome any correction if I am off base.
Thanks for the help so far guys.
C-C is cog to cog center dimension. Early Campy and Shimano shared this at 5mm. Since then both have narrowed the C-C but not kept the same measurement for the same cog count. As the number of cogs get more the differences get less, but the tolerances get smaller for good shifting too. For years i ran Ergo (actually Sachs) with either 7 or 8 speed freewheels. All spaced at 5mm C-C (the Sachs version of Erogs was speced to Shimano or Sachs der, not Campy).
The early Campy 8 speed has the pointy hoods (which I like). They should be thought of as needing a rebuild before use. The "G" springs wear but are a low cost part. There's a lot on on line instructions on how to rebuild them. Andy.