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PostPosted: Thu Aug 16, 2012 9:10 pm 
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Joined: Fri Jun 03, 2011 6:30 pm
Posts: 100
Anynother users out there find this comes loose? I have now tried a Tune Gum Gum with success but does the steerer need the support of the dale top cap?


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PostPosted: Thu Aug 16, 2012 9:51 pm 
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Joined: Thu Sep 30, 2010 5:50 am
Posts: 315
I found the same thing so I pulled it out and put carbon paste around expander before tightening again.
Second question, I prefer the added support the top cap provides. I tried a Extralite expander and could see the steerer deformed when stem was torqued.


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PostPosted: Sat Aug 18, 2012 8:34 am 
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Joined: Sat May 26, 2012 11:26 pm
Posts: 673
Are you now using the standard top cap again. I was thinking of getting an ultrastar for my evo build.

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Evo 5.63kg SL3 6.66 viewtopic.php?f=10&t=110579" onclick="window.open(this.href);return false;" onclick="window.open(this.href);return false;


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PostPosted: Sat Aug 18, 2012 10:11 am 
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Joined: Fri Jun 03, 2011 6:30 pm
Posts: 100
Have installed the standard cap again with carbo grip, but if it slips at all will go back to gum gum. This does reinforce the steerer too.


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PostPosted: Sat Aug 18, 2012 2:58 pm 
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Joined: Tue Aug 09, 2011 2:25 pm
Posts: 478
Location: Aloha, Oregon
Thanks for your heads up, I just bought a Evo and will keep an eye on the topcap. Interesting idea, so you do not need to remove the preload when tweaking the stem as I dial in the fit.

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Let's finish the ride with a 20% grade.

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: Sat Sep 15, 2012 8:02 pm 
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Joined: Fri Jun 03, 2011 6:30 pm
Posts: 100
Back to gum gum but this does need a lot of tightening to get the right preload on the headset


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PostPosted: Sat Sep 15, 2012 8:07 pm 
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Joined: Mon Dec 08, 2003 1:37 am
Posts: 269
Location: Pittsburgh, PA
logy wrote:
Back to gum gum but this does need a lot of tightening to get the right preload on the headset


You do not add preload with a gum gum, you first set preload with a real expander such as the stock one then remove and install your gum gum/tune cap ect.

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Curt Brown

2016 Cannondale EVO DA1 14.0#'s
2012 Cannondale Supersix EVO SRAM Red 12.5#'s
2015 Cannondale SUPER X 16.0#'s
2016 Cannondale FatCad2 28.1#'s
2011 Cannondale Carbon Flash 1 17.9#'s


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PostPosted: Sun Sep 16, 2012 2:03 pm 
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Joined: Sun Sep 16, 2012 1:56 pm
Posts: 8
ok i see


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PostPosted: Sun Sep 16, 2012 9:09 pm 
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Joined: Fri Jun 03, 2011 6:30 pm
Posts: 100
If you do this, wha is the point of the gum gum?


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PostPosted: Mon Sep 17, 2012 12:07 am 
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Joined: Thu Sep 13, 2012 3:57 am
Posts: 60
Just to have the top cap something to screw onto. And oh, weight savings :)

As for me, after everything's torqued down properly, I remove the expander plug and just put a small amount of super glue on the top cap and screw. :thumbup:


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PostPosted: Mon Sep 17, 2012 12:17 am 
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Joined: Mon Dec 08, 2003 1:37 am
Posts: 269
Location: Pittsburgh, PA
logy wrote:
If you do this, wha is the point of the gum gum?



Typical savings are 35-50 grams, lots of grams for the buck, even go cheap with an omni racer carbon cap/expander at $15 and 15 grams, did that one on my Super X and the tune/gum gum on the Evo(14 grams).

_________________
Curt Brown

2016 Cannondale EVO DA1 14.0#'s
2012 Cannondale Supersix EVO SRAM Red 12.5#'s
2015 Cannondale SUPER X 16.0#'s
2016 Cannondale FatCad2 28.1#'s
2011 Cannondale Carbon Flash 1 17.9#'s


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PostPosted: Mon Sep 17, 2012 1:10 pm 
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Joined: Thu Feb 09, 2012 12:41 pm
Posts: 115
gumgum worked just fine on my first ride with it on my evo. it was a very small ride, like 5 miles, but I intentionally hit as many potholes as I could just to try it. all handed fine so far. on a less note, my mechanic did all for me, as Im still learning my way into assembling all parts.


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