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PostPosted: Mon Jun 10, 2013 6:54 am 
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Joined: Fri Feb 01, 2013 6:19 pm
Posts: 86
Location: Portland, Oregon
Considering going from SRAM to Shimano electronic. Some questions and concerns below I have

1. Does anyone run a mix of DA and Ultegra? I hate the look of the Ultegra cranks and would also prefer the DA brakes

2. I currently run a 12-30 cassette. Currently shimano Electronics go up to a 28t cassette. Concerned it could be difficult in the hills


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PostPosted: Mon Jun 10, 2013 7:36 am 
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Joined: Mon Nov 15, 2010 7:58 am
Posts: 360
Buddy runs all Ultegra di2 with 7900 cranks and brakes


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PostPosted: Mon Jun 10, 2013 9:53 am 
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Joined: Tue Jun 12, 2012 4:40 pm
Posts: 161
Ultegra di2 goes up to 28 yes.


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PostPosted: Mon Jun 10, 2013 9:56 am 
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Joined: Sun Nov 13, 2011 9:29 pm
Posts: 110
Location: Belgium
I have put a 30 on an Ultegra DI2, no problems at all.


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PostPosted: Mon Jun 10, 2013 12:09 pm 
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Joined: Tue Jun 12, 2012 4:40 pm
Posts: 161
Had heard it goes to 30, but not seen it in use. I assume it's 11-30 with a compact up front?


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PostPosted: Mon Jun 10, 2013 12:18 pm 
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Joined: Fri Apr 12, 2013 1:19 pm
Posts: 768
Location: South West England
What chainrings do you use? I assume if you are getting Di2 you race? You have no need for more than 25 (in my eyes) for racing. I use a 12-22 with 39-53 for all my training/racing/commuting however could see the benefit of up to 25. I highly doubt you'd need to go up to a 30.

There are no reasons Ultegra and DA shouldn't mix that I know of.

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PostPosted: Mon Jun 10, 2013 12:52 pm 
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Joined: Thu May 23, 2013 9:22 am
Posts: 211
Location: Warwick, UK
Sorry to jump on the thread here, but I#m going to be building up a bike very soon and I'm looking for the best place to buy a Dura Ace Di2 Groupset (10spd)

Internal wiring with Di2 mount battery.
Struggling.
Any suggestions people?

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PostPosted: Mon Jun 10, 2013 1:42 pm 
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Joined: Mon Jan 14, 2013 5:45 pm
Posts: 353
Location: UK
DA9000 Di2 is what you want if your going to do it right.

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PostPosted: Mon Jun 10, 2013 1:44 pm 
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Joined: Sat Dec 13, 2003 2:25 am
Posts: 4743
Location: Canada
The chainring spacing is the same for both groups.


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PostPosted: Mon Jun 10, 2013 2:57 pm 
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Joined: Sun Nov 13, 2011 9:29 pm
Posts: 110
Location: Belgium
dha wrote:
Had heard it goes to 30, but not seen it in use. I assume it's 11-30 with a compact up front?

Yes, with a compact it was.


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PostPosted: Wed Jun 12, 2013 4:01 pm 
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Joined: Mon Oct 15, 2007 9:28 pm
Posts: 1184
I have a buddy that got the KI2 rear derailleur conversion from K-edge.
He runs an 11-32 and sometimes an 11-36 with his DI2.
I would suggest this if you want DI2 and low gears.
He runs a 50/34 up front. He is strong too- just likes low gears and also
likes to keep it in big ring in races.


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PostPosted: Wed Jun 12, 2013 9:14 pm 
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Joined: Sun May 25, 2008 10:12 pm
Posts: 922
Location: italy
with 10T pulleys you can run a 30T cog ...

without expensive K-Edge cage

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