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km6xuTree Fort's deal was the best. I converted an Ultegra-equipped road bike to flat bars after its rider had back surgery. The shifters work as expected, and I found that with care, I was able to get the Ultegra front derailleur to work acceptably well. I would advise one to not buy an FD-R770 or FD-R773 until they give their existing front derailleur a try.