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 Post subject: Re: Gum's CRUMPTON UL
PostPosted: Sun Apr 08, 2012 1:03 pm 
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Joined: Sat Jan 06, 2007 9:47 pm
Posts: 3553
Location: Pittsburgh
Andy,
If I sand the clearcoat, I'm taking it down to the carbon...right? That's what I'd typically do. Are you saying that you and Parlee do it a different way?

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RUEGAMER 5.21kg, 11.48lbs

CRUMPTON 4.40kg, 9.70lbs


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 Post subject: Re: Gum's CRUMPTON UL
Posted: Sun Apr 08, 2012 1:03 pm 


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 Post subject: Re: Gum's CRUMPTON UL
PostPosted: Mon Apr 09, 2012 5:34 pm 
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Joined: Sat Jan 07, 2012 3:21 pm
Posts: 34
gumgardner wrote:

Image
By gumgardner at 2012-02-15

It's beautiful when form and function come together to produce something like this. It's sexy before you even know the weight.


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 Post subject: Re: Gum's CRUMPTON UL
PostPosted: Mon Apr 09, 2012 5:38 pm 
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Joined: Sat Jan 06, 2007 9:47 pm
Posts: 3553
Location: Pittsburgh
Thanks for the compliment. :thumbup: I've made some changes to it and I think it looks even better now. Working on a few things and then will keep everyone updated on the progress.

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RUEGAMER 5.21kg, 11.48lbs

CRUMPTON 4.40kg, 9.70lbs


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 Post subject: Re: Gum's CRUMPTON UL
PostPosted: Mon Apr 09, 2012 5:52 pm 
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Joined: Thu Aug 21, 2008 1:13 am
Posts: 837
Location: Utah
Come on G, when are we going to get a weight. :D
(with pedals, and your tubies)

If you wait until it's "finally built" we will never get a weight. We all know that projuects like this are "never done",...we want them to be but they never are. (i.e. cranks change, pedals change, saddles change, something brakes)

These projest are always a work in progress. Just give us a current weight with yours stuff, as is. :D :thumbup: (you know I am just kidding, I don't want this to come across wrong :D )

Clavicula's look great BTW.
And that combo looks amazing.


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 Post subject: Re: Gum's CRUMPTON UL
PostPosted: Wed Apr 11, 2012 9:29 pm 
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Joined: Sat Jan 06, 2007 9:47 pm
Posts: 3553
Location: Pittsburgh
I couldn't resist. :mrgreen:

Image

Uploaded with ImageShack.us

Now I just have to install it and then I'll get a final weight :thumbup:

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RUEGAMER 5.21kg, 11.48lbs

CRUMPTON 4.40kg, 9.70lbs


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 Post subject: Re: Gum's CRUMPTON UL
PostPosted: Wed Apr 11, 2012 9:40 pm 
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Joined: Sun Dec 16, 2007 9:33 pm
Posts: 713
Location: Luxembourg / Sweden
I've got some stuff that needs done Gum. I'll arrange to have it shipped to you.
Will be in the US around the end of the month to pick it up. OK?

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 Post subject: Re: Gum's CRUMPTON UL
PostPosted: Thu Apr 12, 2012 3:20 pm 
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Joined: Thu Feb 09, 2012 12:41 pm
Posts: 115
beautiful job in that claviculas! so much better this way and will match the frame better w 6 grams less - a no brainer..
sorry about the semantic question but "sanding" has sort of two similar meanings in portuguese (my native language) if you look it up on the dictionary.. what do you actually use for sanding a bike component/frame?


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 Post subject: Re: Gum's CRUMPTON UL
PostPosted: Thu Apr 12, 2012 3:26 pm 
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Joined: Fri Oct 07, 2011 2:08 pm
Posts: 1365
Hey Mr Gum ,I noticed in the crank photo at the bottom part of the crank just before the spider, it looks like the weave in the carbon has broke, is it ok ? Hope so .


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 Post subject: Re: Gum's CRUMPTON UL
PostPosted: Thu Apr 12, 2012 4:41 pm 
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Joined: Sat Jan 06, 2007 9:47 pm
Posts: 3553
Location: Pittsburgh
Yah I think everything looks good. It's probably just the photo angle. There are two small voids in the carbon that was discovered once the clear coat was removed. I'm just going to put some "dental" composite in it and cure it to fill the void. I'm assuming it isn't a problem since it made it thru inspection prior to the clearcoat. I've found that a lot of these ultra light components aren't the prettiest when they are stipped bare. I guess it's the lack of the cosmetic layer (weight savings). Like I said, I'm not worried about it. On my Ruegamer, I have a void in my AX handlebars right at the clamp area that I've been using for a while. I also have a cracked seatpost at the clamp on my Berk combo that I've been using without a problem. I'm seeing how many more miles I can get out of these pieces before I replace them. I have a replacement BERK on the way :wink:

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RUEGAMER 5.21kg, 11.48lbs

CRUMPTON 4.40kg, 9.70lbs


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 Post subject: Re: Gum's CRUMPTON UL
PostPosted: Thu Apr 12, 2012 4:48 pm 
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Joined: Sun Dec 16, 2007 9:33 pm
Posts: 713
Location: Luxembourg / Sweden
THM uses RIM (resin injection molding) http://en.wikipedia.org/wiki/Injection_molding
and with that you have very limited ways of controlling how the weave twists and turns, hence the look.

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 Post subject: Re: Gum's CRUMPTON UL
PostPosted: Thu Apr 12, 2012 8:48 pm 
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Joined: Sun Jul 11, 2010 6:58 pm
Posts: 236
Location: MS, USA
How does that work with the carbon fiber? Lay the fiber, close the mold, inject the resin? The crankarms are hollow, right? So, nitrogen-assisted process?

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My Giant TCR Advanced SL 2014
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 Post subject: Re: Gum's CRUMPTON UL
PostPosted: Thu Apr 12, 2012 8:51 pm 
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Joined: Mon Jan 12, 2004 12:32 pm
Posts: 3548
Location: UK & WEST AFRICA
Great looking bike. Ninja black in all its glory. Would go the extra mile and have a black rear and front mech.


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 Post subject: Re: Gum's CRUMPTON UL
PostPosted: Thu Apr 12, 2012 9:20 pm 
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Joined: Fri Feb 11, 2011 3:04 am
Posts: 2365
Location: Mississippi
KB wrote:
Great looking bike. Ninja black in all its glory. Would go the extra mile and have a black rear and front mech.


Black chain as well......

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http://weightweenies.starbike.com/forum/viewtopic.php?f=10&t=125962


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 Post subject: Gum's CRUMPTON UL
PostPosted: Thu Apr 12, 2012 9:51 pm 
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Joined: Sat Jan 06, 2007 9:47 pm
Posts: 3553
Location: Pittsburgh
Yes...the next chain will be black.

As for the deraileurs...they were the black edition. I dremeled them, which removed the black coating. I could spray them black but I like the raw look.

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RUEGAMER 5.21kg, 11.48lbs

CRUMPTON 4.40kg, 9.70lbs


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 Post subject: Gum's CRUMPTON UL
Posted: Thu Apr 12, 2012 9:51 pm 


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 Post subject: Re: Gum's CRUMPTON UL
PostPosted: Fri Apr 13, 2012 12:02 am 
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Joined: Thu May 14, 2009 12:19 pm
Posts: 1025
Location: Norway
Keeps getting more awesome! Wow.

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djconnel wrote:
If you really wanted to save weight, get off the bike and run.


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