Originally Posted by
gohabsgo
Not that I am aware of. This bike, 2010 Devinci Silverstone SL3, came with 13-25T cassette 9Spd Shimano 105 5800 and was working fine. Just having difficulty with adjusting the new larger 28T correctly.
OK, I'm going to by psychic here and tell you that your RD is really a 5500 9spd or 5600 10 spd, not 5800 then...
That means you have exceeded the capacity of the RD which is only 27 teeth as the largest cog and a total capacity of 29 for the SS. A GS version of the 5500 still has a max cog size of 27 but just has a larger capacity.
As others here have asked... "why do we push the limits of der capacity and then question the results?" I can't answer that question.