Originally Posted by
johnism
would it be benificial to swap out my ultegra SL for a dura ace dérailleur 7800?
Also would you notice a difference if you just did the rear and not the front ...or is if better as as set front and rear?
I am assuming the ulegra sl shifters will work fine with the Dura Ace.
If you were to upgrade anything, the RD is the place to start. As stated, you may or may not notice a difference, as Ultegra is good stuff. The FD has a pretty easy job; pushing the chain from chainring to chainring. You won't see the return in investment here.
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