Old 04-03-14, 03:18 PM
  #3  
Donnie Johnson
Donnie Jonhson
 
Join Date: Mar 2014
Location: Australia
Posts: 70

Bikes: Many, mostly old, steel, heavy and beautiful + one titanium bike; pretty much the complete opposite of my other bikes.

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Hi,

The XT rear derailleur will work just perfectly with you combination. I run a similar system just with different shifters and crank and it works a treat. I cant see why a crank form a different manufacturer would change the rear derailleurs performance. If an ultegra derailleur will work then an XT will work also. Last year I put an XT long cage derailleur into my compact road bike and it worked a treat.

As for compatibility, all Shimano Dyna-shift 10 speed derailleurs must use Shimano Dyna-shift 10 speed shifters. This may be the source of the confusion for your bike shop mechanic. 9 speed xt derailleur will not cause a problem as they are compatible with your system.

I wouldn't really consider anything else, I saying that the Deore one would probably work very well too.

Good luck with the build,

Donnie
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