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PostPosted: Fri Jan 07, 2011 9:39 am 
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Joined: Thu Feb 19, 2009 3:40 am
Posts: 1327
Location: Mornington Peninsula
Does anyone know what the difference is between the 7850 C24 and the new 7900 C24 wheelset is? Besides price and graphics.
Cheers

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Posted: Fri Jan 07, 2011 9:39 am 


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PostPosted: Fri Jan 07, 2011 10:22 am 
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Joined: Sun Feb 22, 2009 12:31 pm
Posts: 21
Location: Brisbane, Australia
The spoke nipples are black instead of red, and the bearing preload adjustment is different (more user friendly) on the 7900's. FYI I have the 7900's. Haven't poked around inside the hubs yet to see if there are any differences there.


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PostPosted: Sun Feb 05, 2012 12:29 pm 
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Joined: Fri Oct 09, 2009 11:45 am
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I heard seals are different and faster engagement on 7900, not sure anyone can confirm? Also physically the 7900 hub shell is larger


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PostPosted: Sun Feb 05, 2012 4:21 pm 
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Joined: Mon Jul 18, 2011 3:33 pm
Posts: 93
Location: Portsmouth UK
i have had both..

newer seals on the 7900, new graphics, black spoke nipples, black skewers. (black skewers only come on non OEM wheels)

proper retail ones will come with black skewers and wheel bags.

best place I have found to buy them is where I got mine.. Hargroves cycles

another good shop, Planet X..they also do C35's and C50's :)

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PostPosted: Mon Feb 06, 2012 2:54 am 
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Joined: Fri Oct 09, 2009 11:45 am
Posts: 113
Confirmed:
-New Seals
-Rim Cosmetics
-Nipple Color
-Hub Axles Larger
-Digital Click System (for the bearing preload)

Maybe?
-Faster Engagement with 7900 freehub?


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PostPosted: Thu May 24, 2012 9:31 pm 
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Joined: Sat Oct 23, 2004 6:42 pm
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Location: Stockholm,Sweden
I will pick up my new new 7900 tomorrrow and sell my 7850.


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PostPosted: Fri May 25, 2012 3:02 am 
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Joined: Sat Oct 23, 2010 8:36 pm
Posts: 106
also,

7850's are 20mm wide,
7900's 22mm


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PostPosted: Fri May 25, 2012 4:54 am 
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Joined: Mon Feb 18, 2008 9:47 pm
Posts: 258
Location: CA
blantonator wrote:
also,

7850's are 20mm wide,
7900's 22mm


That is incorrect, both rims are 20.8mm wide.

WH7900C24 tech doc

WH7850C24 tech doc

You can alos compare part #s by looking up the exploded views: 7900 exploded view and 7850 exploded view.

To the OP, I'm currently riding the 7900 C24 clinchers and they're fantastic. Go for it!

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Posted: Fri May 25, 2012 4:54 am 


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