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PostPosted: Mon Apr 21, 2014 9:04 pm 
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Joined: Wed Jan 10, 2007 10:56 pm
Posts: 635
Location: Canada
Well, there you go. Shimano has now issued a new Dura Ace 9000 chain that is asymmetrical, like the 7900 chains. They just can't make up their minds! Designation is CN-HG900-11


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Posted: Mon Apr 21, 2014 9:04 pm 


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PostPosted: Mon Apr 21, 2014 9:09 pm 
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Joined: Wed Mar 06, 2013 4:23 pm
Posts: 367
Location: Austin, TX
I don't think that's a Dura Ace chain. I think it's for their new XTR MTB group that's 1X11

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PostPosted: Mon Apr 21, 2014 9:11 pm 
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http://productinfo.shimano.com/lineupchart.html#series=dura-ace&speed=2x11


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PostPosted: Mon Apr 21, 2014 9:16 pm 
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Well I'll be! that's the same chain being used for XTR -- http://www.ridextr.com/en/productdetail/sku,CN-HG900-11.html Doing Double Duty!

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Last edited by rmerka on Mon Apr 21, 2014 9:21 pm, edited 1 time in total.

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PostPosted: Mon Apr 21, 2014 9:21 pm 
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Joined: Thu Apr 11, 2013 8:21 pm
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I don't see where it says it's asymmetrical.

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PostPosted: Mon Apr 21, 2014 9:26 pm 
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http://si.shimano.com/php/download.php?file=pdf/dm/DM-CN0001-02-A-ENG.pdf

See Page 5

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PostPosted: Tue Apr 22, 2014 3:16 am 
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Joined: Mon Apr 21, 2014 9:17 pm
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When they launched the 5800 group, the 11-speed chain is asymmetrical and Shimano said they would upgrade the higher groups chains too. Apparently the stiffer outer plate makes for a better front shifting. Can't say much about that, but I'm waiting for this new chain to become available.


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Posted: Tue Apr 22, 2014 3:16 am 


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PostPosted: Tue Apr 22, 2014 5:20 am 
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Joined: Mon Feb 06, 2006 1:06 am
Posts: 204
Dang and I just stocked up on the "older" dura ace chains because they were on sale. I guess I know why they went on sale!

But that's ok, I'm happy with the shifting using the current chain. And I'm sure that switching out a fresh symmetric chain will shift better than a worn out asymmetric!

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