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Juanmoretime
 Post subject: Re: Gum's CRUMPTON UL
PostPosted: Thu Jan 19, 2012 10:40 am 
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Very nice project. Are you going to NAHBS?

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MARLON
 Post subject: Gum's CRUMPTON UL
PostPosted: Thu Jan 19, 2012 11:22 am 
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Oooooooh

Aaaaaaah


For what ???

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Weenie
 Post subject: Gum's CRUMPTON UL
Posted: Thu Jan 19, 2012 11:22 am 


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gumgardner
 Post subject: Re: Gum's CRUMPTON UL
PostPosted: Thu Jan 19, 2012 12:15 pm 
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Posts: 3553
Location: Pittsburgh
fallen86 wrote:
Ridiculous weight! Congrats. What bottom bracket shell did you go with and what cranks do you have in mind?


Thank you. :beerchug: It's designed to work with the AX Morpheus. It's basically a bb386.

Valbrona wrote:
gumgardner wrote:
The Ruegamer was meant to be an "über" weenie build, but when the frame came in at 1087g I knew it wasnt going to be what I was looking for.


I admire your keeness to want to build what you call an uber lightweight build. Getting the first thing right would be a start, ie. the frame. Surely a frame with an integrated seatpost is lighter than a traditional frame + seatpost?


Not necessarily... my seatpost and saddle will weigh around 125g when done. Jure Berk is building me a nano carbon combo, using the Tune Speedneedle shape. Here are a few "in production" pics, as the parts were pulled from the moulds:

Image
By gumgardner at 2012-01-18

Image
By gumgardner at 2012-01-18

Image
By gumgardner at 2012-01-18

caseycycling wrote:
Wow almost a full pound difference b/t the Crumpton and the Ruegamer, you have got to be excited. Not that many 8lb bikes floating around out there. Are you going to use parts intended to go on the previously mentioned 18page Ruegamer build for the Crumpton frame? Or are you building the Rue as planned and getting all new uber light parts for the Crumpton?


I kept some of the parts intended for the Rue, but the uber-light parts were saved for the Crumpton. There will also be some tuning with the components on this build, which I didn't do on the Ruegamer.

Juanmoretime wrote:
Very nice project. Are you going to NAHBS?

Unfortunately no. A lot of you guys and girls will likely see it before me. :evil: Be nice to it :wink:

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RUEGAMER 5.21kg, 11.48lbs

CRUMPTON 4.40kg, 9.70lbs
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campbellrae
 Post subject: Re: Gum's CRUMPTON UL
PostPosted: Thu Jan 19, 2012 5:32 pm 
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Posts: 544
Location: Glasgow, Scotland
:popcorn:
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mises
 Post subject: Re: Gum's CRUMPTON UL
PostPosted: Thu Jan 19, 2012 8:13 pm 
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Damn, I may have to get a job again to keep up. :shock:

You should use a DT shifter for the f der to save some more weight, and none of that porky electronic shifting stuff.
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donald
 Post subject: Re: Gum's CRUMPTON UL
PostPosted: Thu Jan 19, 2012 8:50 pm 
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Joined: Sun Sep 11, 2005 11:32 pm
Posts: 252
Location: san francisco ca. usa
From the picture it really looks like a great frame from a great builder. I really admire Nick's work. Also a fantastic weight. I was wondering If that weight includes the front and rear derailleur hangers. ......can't wait to see more pictures.
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gumgardner
 Post subject: Re: Gum's CRUMPTON UL
PostPosted: Thu Jan 19, 2012 10:58 pm 
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Posts: 3553
Location: Pittsburgh
@donald...I'm not exactly certain about the weight being with the hangers. All I know is this was the weight before it was sent to the painter. Nick told me that the weight was sub 640g, so this weight 648g might include them. But like I said, I'm not sure. The matte finish will likely add 20-30g to the final weight.

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RUEGAMER 5.21kg, 11.48lbs

CRUMPTON 4.40kg, 9.70lbs
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Fuchspk
 Post subject: Re: Gum's CRUMPTON UL
PostPosted: Fri Jan 20, 2012 1:04 am 
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Location: Sweden
nice looking frame :)
i actually do not like the cabelstops as you could do them a bit more slimmed and lighter...but hey, not every body is perfect :lol:
just joking a bit....

will be fun to follow this build.

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fallen86
 Post subject: Re: Gum's CRUMPTON UL
PostPosted: Fri Jan 20, 2012 7:41 am 
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Posts: 45
with all the razor-blade work you do on your components i would have guessed you'd go with a nude carbon finish instead of a matte black... 30 grams in paint? blasphemy! :evil:
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bikemaniack
 Post subject: Re: Gum's CRUMPTON UL
PostPosted: Fri Jan 20, 2012 8:58 am 
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Joined: Thu Jul 16, 2009 9:33 pm
Posts: 356
The frame is only few grams heavier than the frame from "World lightest bike" project.
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gumgardner
 Post subject: Re: Gum's CRUMPTON UL
PostPosted: Fri Jan 20, 2012 12:48 pm 
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Location: Pittsburgh
fallen86 wrote:
with all the razor-blade work you do on your components i would have guessed you'd go with a nude carbon finish instead of a matte black... 30 grams in paint? blasphemy! :evil:


I've considered that...removing it will give me something to do though :twisted:

Fuchspk wrote:
nice looking frame :)
i actually do not like the cabelstops as you could do them a bit more slimmed and lighter...but hey, not every body is perfect :lol:
just joking a bit....

will be fun to follow this build.


Talk to Nick :wink:

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RUEGAMER 5.21kg, 11.48lbs

CRUMPTON 4.40kg, 9.70lbs
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Fuchspk
 Post subject: Re: Gum's CRUMPTON UL
PostPosted: Fri Jan 20, 2012 12:53 pm 
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like i said, just joking a little. he do really nice frames and stuff.
and i can see why he build them this way.

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:arrow: my 36XXg Stevens

:arrow: my Litespeed


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gumgardner
 Post subject: Re: Gum's CRUMPTON UL
PostPosted: Fri Jan 20, 2012 1:10 pm 
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Posts: 3553
Location: Pittsburgh
@fuchspk: I was just kidding. :wink:

Here is the fork that I am going with...the extremely hard to find THM Scapula SP. This is the new, reworked model. THM no longer offers the "tuned" version. The SP is the lightest that they offer. This is the pic of the fork, uncut and before it was finished to match the frame.

Image
By gumgardner at 2012-01-20

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RUEGAMER 5.21kg, 11.48lbs

CRUMPTON 4.40kg, 9.70lbs
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TOflat
 Post subject: Re: Gum's CRUMPTON UL
PostPosted: Fri Jan 20, 2012 2:55 pm 
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Joined: Fri May 21, 2010 5:43 am
Posts: 156
You should have a poll to see who will guess the final weight when finished. (By the way things are going I'll say 8.6lbs when all said and done).

I saw the weight of the frame and now I want more!
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Weenie
 Post subject: Re: Gum's CRUMPTON UL
Posted: Fri Jan 20, 2012 2:55 pm 


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nicrump
 Post subject: Re: Gum's CRUMPTON UL
PostPosted: Fri Jan 20, 2012 4:41 pm 
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Joined: Thu Oct 23, 2003 5:18 pm
Posts: 742
Location: Austin
Fuchspk wrote:
nice looking frame :)
i actually do not like the cabelstops as you could do them a bit more slimmed and lighter...but hey, not every body is perfect :lol:
just joking a bit....

will be fun to follow this build.


they are 3 grams each. they are not as bulky as you think but they do have a lot of surface area because i do not want them popping off when you grab a ton of brake lever or stuff that front shift hard.

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Last edited by nicrump on Fri Jan 20, 2012 4:43 pm, edited 1 time in total.

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