Originally Posted by
Andrew R Stewart
I think your claim of 5mm c-c cog spacing for SunTour cog sets is not correct. Perhaps for the more current ST stuff that does mimic Shimano's lead. But the ST stuff from the 1990s had cog spacing that varied across the cog set. Andy
Sheldon says they are the same.
https://www.sheldonbrown.com/cribsheet-spacing.html