Originally Posted by
dtrain
I'm hearing I might be able to run 4700 STIs with 5800 RD + FD (which I have on hand, plus the 5800 calipers installed), with the 10-speed wheelset, cassettes, and chains I want to use up? Just thinking of an 'upgrade' that is less than full 5800 with new wheels (as this will still be a back-up, rain, commuter bike). Or maybe a new 5800 cable/housing set would help bring new life to the 5700 stuff?
Thanks in advance!
4700 uses the "new" geometry front derailleur, so you can use the 5800 front derailleur on 4700 shifters...however 11 and 10 speed rear are different cable pull/geometry, so you cannot mix the 4700/5800 rear shifter/derailleur.
As for your comment about "shifters seem to take a fair amount of effort", this is a sign of worn/old/dirty cables. Shifters with higher mileage just get 'sloppy', but they should not get 'heavier' in action.