Originally Posted by
dabac
You've said it yourself.
Sure, tension will increase a lot proportionally on the lower run when the derailer is all stretched out. But the actual value will still be a lot less than the tension on the top run. I'd still be more concerned about that end.
Wow, nothing like having my post taken out of context. here is the entire sentence;
While actual tension of the chain top run is probably much more, the top run chain is not routed through a derailleur either, so simply comparing the tensions of the top run and bottom run is irrelevant*; the top run is reliant on the pedaling forces and the run bottom is dependent on the derailleur and the amount of slack chain that needs to be taken up
.
The tension does not even increase
proportionally as the tension of the top and bottom are entirely independent of each other (the top run is determined by pedaling forces and the bottom run run the length of the extra chain and spring power of the derailleur) and in the context of the noise the derailleur makes, as I said before, it is irrelevant in this discussion.