Originally Posted by
pdlamb
Could the Dura Ace shifters be from the era when they were not compatible with the rest of Shimano's offerings? Back when you had to match DuraAce derailers with Dura Ace shifters?
That was only for 8-speed and prior Dura Ace components. 9-speed and 10-speed Dura Ace are fully compatible with all other road groups.