Originally Posted by
Germanicus
I am wondering why the surly cug only said 6-9 sp. Is a 10 speed chain too thin? AND.. Would you get less (or slower) chain stretch on a 6 sp chain because there is more metal to wear through?
I don't know about the 10 speed, since I've never tried to use one, but perhaps they run tighter clearances or the chainrings/cogs are slightly thinner. In any event, wear will be the same, because the plates do not stretch, instead the pins and bushings wear over time.