I will add one warning. Some Dura Ace components are not compatible with others, so beware when playing with Dura Ace.

I have an older Fuji road bike. It has Cannondale brake calipers. Dura Ace bar end shifters. Shimano I have no clue brake levers. Shimano Deore mountain crankset with an LX front derailer. Ultegra 11-28 cassette and 105 medium cage rear derailure. All topped of with Mavic CXP22 rims laced to 105 hubs and a Dura Ace chain. All 9 speed components.

You can't get any more grouppo mixed than that. Oh yea it works just fine thank you very much.

Mark Shuman