Shimano Ultegra 6800 Chainset compatible with full 7900?

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relanium
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Joined: Thu Dec 10, 2009 9:12 pm
Location: Yorkshire, United Kingdom

by relanium

I was wondering if I purchase a Shimano Ultegra 6800 Chainset (52x36) would it be compatible with my existing 10speed 7900 setup? I have a Shimano Dura Ace 9000 BB92-41B Press Fit Bottom Bracket fitted to my bike at the moment.

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Frankie - B
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by Frankie - B

Is the diameter of the axle the same? (yes, both 24mm) Is the length of the axle the same? (probably yes, I'm not a shimano tech geek) then it will probably work.
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goodboyr
Posts: 1487
Joined: Wed Jan 10, 2007 10:56 pm
Location: Canada

by goodboyr

Yes. No issues.

junchen
Posts: 348
Joined: Fri Jun 12, 2015 6:21 pm

by junchen

Yes, 11 spd and 10 spd shimano cranksets are interchangeable. Though shimano for obvious reasons don't say so.

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tnc1970
Posts: 41
Joined: Sat Dec 14, 2013 6:53 am

by tnc1970

From an actual setup: yes, it is compatible. No issues whatsoever.

rukomasa
Posts: 42
Joined: Fri Mar 16, 2012 7:18 am

by rukomasa

i was running FC6800 52/36 on my 7970Di2 setup last year. havent seen any problem but i felt like not as stiff as fc7950. yes, could be a pracebo.

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