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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: 49
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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Posted: Thu Aug 16, 2012 9:10 pm 


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PostPosted: Thu Aug 16, 2012 9:51 pm 
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Joined: Thu Sep 30, 2010 5:50 am
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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
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Are you now using the standard top cap again. I was thinking of getting an ultrastar for my evo build.

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PostPosted: Sat Aug 18, 2012 10:11 am 
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Joined: Fri Jun 03, 2011 6:30 pm
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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
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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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PostPosted: Sat Sep 15, 2012 8:02 pm 
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Joined: Fri Jun 03, 2011 6:30 pm
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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: 245
Location: Sewickley, 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
2012 Cannondale Supersix EVO SRAM Red 12.5#'s

2011 Cannondale Carbon Flash 1 17.9#'s

http://cbevo.com/2012_cd_supersix_evo_31.html


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PostPosted: Sun Sep 16, 2012 2:03 pm 
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Joined: Sun Sep 16, 2012 1:56 pm
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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
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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
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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: 245
Location: Sewickley, 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).

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Curt Brown
2012 Cannondale Supersix EVO SRAM Red 12.5#'s

2011 Cannondale Carbon Flash 1 17.9#'s

http://cbevo.com/2012_cd_supersix_evo_31.html


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Posted: Mon Sep 17, 2012 12:17 am 


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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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