Originally Posted by
sdixon07
sorry i understand that i need to keep all components the same speed group ie 9
but what i was wondering was if i could use
different ultegra series parts together
and if dura ace and or 105 parts would work as well?
There are two seperate divisions, the 7900/6700 "new" style shimano shifters with concealed shift cables and the old generation STI with externally routed shift housing. Everything fairly recent *should* be compatible with each other, for the most part.