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 Post subject: Dura Ace 9000 hubs
PostPosted: Sat Oct 13, 2012 4:03 pm 
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Joined: Fri Mar 09, 2007 1:26 am
Posts: 547
Location: USA
These are finally available. Does anyone know if there is anything different on the new hubs besides color and the cassette body. I am tempted to build a set of wheels with the new hubs, but they would cost me a bit more $$$. Now I just want to justify the extra cash if there are no major changes from the 7900 hubs.


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 Post subject: Re: Dura Ace 9000 hubs
PostPosted: Sat Oct 13, 2012 4:34 pm 
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Joined: Sun Jun 17, 2012 3:45 am
Posts: 100
According to Shimano's site, the new hubs feature 11s compatibility and new seal construction.
Not really sure how much they changed with the seals but they look sick in black :D

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 Post subject: Re: Dura Ace 9000 hubs
PostPosted: Sat Oct 13, 2012 4:54 pm 
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Joined: Sat May 12, 2012 7:25 pm
Posts: 2550
Location: Glermsford, Suffolk U.K
Different flange spacings to accomadated the 11 speed cassete.

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 Post subject: Re: Dura Ace 9000 hubs
PostPosted: Sat Oct 13, 2012 11:18 pm 
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Joined: Fri Mar 09, 2007 1:26 am
Posts: 547
Location: USA
I did a spoke calculation and the 9000's take the same length of spoke which I found interesting.


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 Post subject: Re: Dura Ace 9000 hubs
PostPosted: Sun Oct 14, 2012 1:14 pm 
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Joined: Sat Jan 15, 2011 1:24 am
Posts: 19
I have just done a build with Dura Ace 9000 and the new c24 wheels. Hubs now make a click sound when free wheeling like most other hubs. Previous version was quite.


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 Post subject: Re: Dura Ace 9000 hubs
PostPosted: Sun Oct 14, 2012 2:45 pm 
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in the industry

Joined: Sat May 12, 2012 7:25 pm
Posts: 2550
Location: Glermsford, Suffolk U.K
Flange spacing makes almost no difference to spoke length if flange diameters are the same.

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 Post subject: Re: Dura Ace 9000 hubs
PostPosted: Sun Oct 14, 2012 7:37 pm 
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Joined: Mon Aug 06, 2012 11:23 am
Posts: 25
Will the 9000 11s groupset be compatible with the existing 7900 hub?


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 Post subject: Re: Dura Ace 9000 hubs
PostPosted: Mon Oct 15, 2012 2:25 am 
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Posts: 346
Location: Greenville, SC USA
Lowest spoke count for the rear is 24 which is OK but lowest for the front 24 as well. Would have been nice to see a 20 hole for building with carbon rim like Enve or Zipp

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 Post subject: Re: Dura Ace 9000 hubs
PostPosted: Mon Oct 15, 2012 5:56 pm 
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Joined: Mon Jan 15, 2007 5:27 pm
Posts: 367
Location: Switzerland
If someone's interested in building a wheelset with those new 9000 hubs, here are the specs :

9000 Freehub :

Spoke Holes PCD : 44 mm (Non drive side) / 45 mm (drive side)
Flange distance : 56.9 mm
Flange distance 28 holes : 56.5 mm
Dish : 9.75 mm
Dish 28 holes : 9.95 mm

9000 Front hub :
Spoke Holes PCD : 38 mm
Flange distance : 74.0 mm


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 Post subject: Re: Dura Ace 9000 hubs
PostPosted: Tue Oct 16, 2012 12:37 am 
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in the industry

Joined: Sat May 12, 2012 7:25 pm
Posts: 2550
Location: Glermsford, Suffolk U.K
Thanks for letting use know but you might as well round flange spacing measurements to nearest 0.5mm as 0.05mm change does not change spoke length in reality. Also easier to measure that way.

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 Post subject: Re: Dura Ace 9000 hubs
PostPosted: Mon Nov 26, 2012 8:26 pm 
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Joined: Wed Mar 17, 2004 1:38 pm
Posts: 1415
Guerdi,

How do I get from the numbers you posted to the center to flange distances for the 9000 cassette hub? If you know them I would appreciate it if you could post them.

Thanks,
Geoff


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 Post subject: Re: Dura Ace 9000 hubs
PostPosted: Mon Nov 26, 2012 9:07 pm 
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Joined: Fri Mar 09, 2007 1:26 am
Posts: 547
Location: USA
Here are those numbers..

Left Flange Diameter: 44mm Right Flange Diameter: 45mm
Left Center To Flange: 36.5mm Right Center To Flange: 16.5mm
Holes: 24


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 Post subject: Re: Dura Ace 9000 hubs
PostPosted: Mon Nov 26, 2012 9:43 pm 
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Joined: Wed Mar 17, 2004 1:38 pm
Posts: 1415
Thanks.


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 Post subject: Re: Dura Ace 9000 hubs
PostPosted: Mon Nov 26, 2012 10:02 pm 
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Joined: Fri Mar 09, 2007 1:26 am
Posts: 547
Location: USA
You're very welcome


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 Post subject: Re: Dura Ace 9000 hubs
PostPosted: Tue Nov 27, 2012 10:55 am 
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Joined: Sun Jan 17, 2010 11:04 am
Posts: 16
Werdna wrote:
According to Shimano's site, the new hubs feature 11s compatibility and new seal construction.
Not really sure how much they changed with the seals but they look sick in black :D


they are not really black.


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