I have all 2008 Record on my ride. Time for a new chain. I seem to remember reading/hearing the difference between the 5.9 10s and 5.5 11s is all in the outside width and the inside width of the chain is the same. Is that true? If so can I run an 11 speed chain on my 10 speed. Seems like the Record 10s is getting scarce and 11s is close to the same price. If I was going to go 11s over the winter it might be nice to have one less thing to buy.
Also what about running different campy chains, sure they are heavier...but not much.
Also what about running different campy chains, sure they are heavier...but not much.