Dura-ace di2 v ultegra Di2

Discuss light weight issues concerning road bikes & parts.
Chiva
Posts: 341
Joined: Sat Apr 03, 2010 11:05 pm

by Chiva

WeightySteve wrote:Pretty good comparison on the front mech...

http://www.youtube.com/watch?v=mpGGrYs62CU" onclick="window.open(this.href);return false;


Doesn't look any slower to me.

Dustin
Posts: 87
Joined: Wed Dec 14, 2011 4:37 pm

by Dustin

That video shows....nothing?

by Weenie


JensW
Posts: 763
Joined: Mon Jan 24, 2005 9:41 pm
Location: Uppsala, Sweden

by JensW

Chiva wrote:
WeightySteve wrote:Pretty good comparison on the front mech...

http://www.youtube.com/watch?v=mpGGrYs62CU" onclick="window.open(this.href);return false;" onclick="window.open(this.href);return false;


Doesn't look any slower to me.



we don´t talk about seconds in difference :D so hard to se that you should be able to se the difference :D

CrazyErrol
Posts: 366
Joined: Sun Sep 05, 2010 11:30 pm

by CrazyErrol

If we could reach a consensus before I have to press buy, that would be great. :D

Dustin
Posts: 87
Joined: Wed Dec 14, 2011 4:37 pm

by Dustin

If you haven't ridden D/A Di2, you'll never know the difference. Ultegra still will never miss a shift.

quango2k
Posts: 111
Joined: Mon Jul 18, 2011 3:33 pm
Location: Portsmouth UK

by quango2k

i have both, in real world use, not any difference, you change gear, it happens..simple!

but as far as quality is concerned..obviously the DA is better, rear mech is smaller. YES the new wiring harness is ver good, but both of mine are internal so makes no odds really.

weight, you wouldn't notice a difference on the bikes.

one thing for certain is the DA is faster that the ultegra, not by miles and hardly noticeable, but faster all the same..but what do you expect! if they released the ultegra and it was faster and better than DA then they would be stuck with loads of units they couldn't sell!

if i was in your shoes, and had the cash, id go DA, you already have the callipers and chain set (I presume?) so only the elecs would need upgrading. mixing DA and ULT just looks weird lol.
"Heroes do not die, they re-load"

tarz
Posts: 316
Joined: Fri May 22, 2009 4:42 am
Location: Great southern land

by tarz

does the ultegra wiring harness work with the dura ace di2 components?

tigradekat
Posts: 57
Joined: Tue Jul 18, 2006 7:27 am

by tigradekat

The 9070 series Dura Ace Di2 uses the same E-Tube wire system as the 6770 series Ultegra Di2. So if you want to upgrade your Ultegra Di2 components to new DA Di2, you can leave the wires in the frame. The old DA Di2 uses a different cable system and is not compatible with Ultegra or the new DA.

roselend
Shop Wrench
Posts: 165
Joined: Sun Sep 05, 2010 9:31 am
Location: Belgian border

by roselend

I must say that I didn't noticed any difference in front shifting speed between DA Di2 and U Di2, but could be me.

Comparing Ultegra and Dura-ace Di2.. Hey, if you have the money. Go for DA. Although I rather spend some more money on nice wheels and tubs instead.

Just want to add: When people walk into the shop they often make a comparison between mechanical 7900 Dura-ace and Ultegra Di2, as it's basically the same price. I cant believe how many people choose the mechanical DA. The Di2 groups, both of them, are so much better in reliability and performance.

goodboyr
Posts: 1393
Joined: Wed Jan 10, 2007 10:56 pm
Location: Canada

by goodboyr

There is updated firmware for all of the ultegra di2 components. I could be wrong, but when I updated them it seemed that shifting was a bit smoother and faster.

Ghost234
Posts: 423
Joined: Sun Apr 24, 2011 2:21 am

by Ghost234

roselend wrote:
Just want to add: When people walk into the shop they often make a comparison between mechanical 7900 Dura-ace and Ultegra Di2, as it's basically the same price. I cant believe how many people choose the mechanical DA. The Di2 groups, both of them, are so much better in reliability and performance.



There are a LOT of people that simply do not like electronic - I'm one of them. I don't like the way it shifts, especially with winter gloves. I don't have any reliability issues with my mechanical, once the cables have stretched it is good for thousands of km.

For CX or XC I can see the reliability concerns due to mud.

virenque
Posts: 279
Joined: Fri Oct 21, 2005 4:08 am

by virenque

yep, the latest firmware seems to speed up the shifting

pagey
Posts: 33
Joined: Sun Jul 11, 2010 3:03 am

by pagey

What do I need to update te firm ware


by Weenie


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