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PostPosted: Fri Jan 08, 2016 4:02 pm 
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Joined: Thu Dec 03, 2015 4:14 am
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Hi, I've tried Googling this and also searching within WW and am unable to find a total groupset weight for DA 9070 vs 9000. I'm guessing 9000 is lighter as Cannondale's Black Inc includes this groupset- but does anyone know the actual gram difference?

Thanks


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PostPosted: Fri Jan 08, 2016 4:14 pm 
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Did you try googling "groupset weights"?

http://www.thebikelane.com.au/2015/06/2 ... t-weights/


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Posted: Fri Jan 08, 2016 4:14 pm 
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PostPosted: Fri Jan 08, 2016 4:14 pm 
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Quote:
''The Shimano Dura-Ace Di2 9070 electronic groupset with internal battery weighs 2047 grams; the Shimano Dura-Ace 9000 mechanical groupset weighs 2074 grams (27 grams more than Di2.)''


Taken from http://carltonbale.com/shimano-di2-ever ... d-to-know/


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PostPosted: Fri Jan 08, 2016 4:16 pm 
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Thanks. Strange- when I was just googling 9070 vs 9000 weight I was striking out.


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PostPosted: Fri Jan 08, 2016 5:56 pm 
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Location: Aloha, Oregon
Nice charts on the link to have... thanks

s

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2011 Scott Addict R1 DA 7900 Matt black
2012 Scott CR1 Pro Ultegra 6700
2013 Cannondale EVO Hi mod DA 9000
2015 Cervelo R5 DA 9000 No rotor.


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PostPosted: Fri Jan 08, 2016 6:14 pm 
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I hadn't seen the numbers in some time. Was surprised how little the weight penalty is.

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PostPosted: Fri Jan 08, 2016 11:13 pm 
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Yes, it was those figures that prompted me to go electronic.

Steve

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PostPosted: Sun Jan 10, 2016 10:06 am 
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trailflow1 wrote:
Quote:
''The Shimano Dura-Ace Di2 9070 electronic groupset with internal battery weighs 2047 grams; the Shimano Dura-Ace 9000 mechanical groupset weighs 2074 grams (27 grams more than Di2.)''


Taken from http://carltonbale.com/shimano-di2-ever ... d-to-know/


It's difficult for me to believe that the mechanical can be heavier than the electronic. The front and rear DI2 derailleurs cant possibly be lighter than their mechanical counterparts; then you have the battery and junction box.

Where is this weight being saved? Shifters? Is the difference so great that it makes up for the battery and motors of the other components?


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PostPosted: Sun Jan 10, 2016 12:17 pm 
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pavel wrote:
trailflow1 wrote:
Quote:
''The Shimano Dura-Ace Di2 9070 electronic groupset with internal battery weighs 2047 grams; the Shimano Dura-Ace 9000 mechanical groupset weighs 2074 grams (27 grams more than Di2.)''


Taken from http://carltonbale.com/shimano-di2-ever ... d-to-know/


It's difficult for me to believe that the mechanical can be heavier than the electronic. The front and rear DI2 derailleurs cant possibly be lighter than their mechanical counterparts; then you have the battery and junction box.

Where is this weight being saved? Shifters? Is the difference so great that it makes up for the battery and motors of the other components?


I couldn't agree more. The weights on that chart seem suspect.


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PostPosted: Sun Jan 10, 2016 2:14 pm 
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Shifters are way lighter, electric wire is much lighter than shift cable and housing. I haven't done the math's ,but for me, the chart makes sense. Take a look at the real weights in my Scott topic. Feel free to compare that to real weights of a mechanical groupset...

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PostPosted: Sun Jan 10, 2016 2:16 pm 
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Location: Pa USA
Carltonbale is wrong. The weights on the other link are correct. There was some sort of a typo when Shimano originally released 9070 weights, since corrected. Fairwheel has actually weighed the parts, its on Bikerumor.


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PostPosted: Fri Jan 29, 2016 3:33 pm 
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Location: Canada
He didn't include cable weights under the assumption that they negate each other. That is an incorrect assumption.


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PostPosted: Sun Jan 31, 2016 3:25 pm 
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I am also researching it, which I thought was

Dura Ace 9070 Di -2.034 g
Dura Ace 9000 - 1.998 g

Ultegra 6870 Di - 2.407 g
Ultegra 6800 - 2.294 g


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PostPosted: Sun Jan 31, 2016 4:00 pm 
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http://www.bikerumor.com/2013/03/12/unb ... l-weights/

18g lighter than this chart

Attachment:
68198-largest_1_weight_reduction.png
68198-largest_1_weight_reduction.png [ 84.77 KiB | Viewed 157 times ]


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Posted: Sun Jan 31, 2016 4:00 pm 
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PostPosted: Sun Jan 31, 2016 4:20 pm 
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Posts: 762
the last chart has some incorrect values..

everyone should checkout real world ww weighed/verified data

viewtopic.php?f=10&t=134375

the dura ace 9070 fd 107gm.

btw next gen group will reduced weight by another 50gms easily.

lighter derailleurs/battery/juction boxes.

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