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PostPosted: Tue Jul 29, 2014 7:53 pm 
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Joined: Mon Jan 12, 2009 3:49 am
Posts: 41
Hi all,

Looking to add an older 2007 Shimano XTR M970 rear derailleur to a road bike and pair it with Ultegra 6800 11 speed shifters. Is this even possible? Searched The Google and while it won't work with a Dynasys rear der, my old XTR unit is not Dynasys (pre Dynasys), so the info I've found is inconclusive. I'm building up a gravel bike and have a nearly NOS condition M970 rear der which would be nice to use if I can.

Thanks!


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Posted: Tue Jul 29, 2014 7:53 pm 


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PostPosted: Tue Jul 29, 2014 8:28 pm 
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Joined: Wed Apr 09, 2014 8:08 pm
Posts: 222
Location: Bremerton, WA
You will most likely be disappointed by shifting performance, but the derailleur will move the chain...

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PostPosted: Wed Jul 30, 2014 2:44 am 
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Posts: 41
Thanks, I think I figured it out. A 9 speed Shimano mountain derailleur will that is pre Dynasys will work with 11 speed Ultegra 6800. It should shift normally.


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PostPosted: Fri Aug 01, 2014 4:51 am 
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Joined: Mon Aug 30, 2010 10:18 pm
Posts: 37
Hmm, does that mean that a 6800 RD would work with 10sp shifters/cassette?


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