Originally Posted by
johnlh
What's wrong with Tiagra? I've got 20,000 miles on my Tiagra shifters and derailleurs. They are every bit as functional and smooth as the Dura Ace gruppo on my other bike. If you are dying to go 10 speed, save your cash and go with 105.
OP says he wants Ultegra 6700. I don't see any point in disagreeing with him.