Are there different chain widths and chainring spacings in the 5-8 speed chain range?
I've got an old crankset, an sr apex probably from the 5 speed freewheel era, and am using it with 6 and 7 speed freewheels and I think an "8 speed" chain. It shifts fine in the rear but sometimes when downshifting in front the chain rides between the rings. I'm looking to get a new chain and have seen most described as 6-8 speed or 5 speed, but some as 6-7 speed. I'm assuming the 5 speed chains would be thicker, maybe thicker than I want, but would there likely be a difference in width between the 6-7 speed and the 6-8 speed chains? Any measurement information or specific chain recommendations for my setup appreciated.