I tried a search on this topic, with no luck.
I need to replace my chain soon...my drivetrain is dura ace 7400 6 speed freewheel.
I have seen hyperglide HG models with various numbers after them. I imagine the higher the number, the thinner the chain...to work with the narrower cluster. But what's the real difference, and which one would work best with my standard-6 speed spacing? I am guessing I want the HG-50 but not sure.