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PostPosted: Wed Feb 13, 2013 2:56 pm 
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Joined: Fri May 18, 2012 7:11 pm
Posts: 296
Location: FL
That is a design that would be awesome. Thinking of a FSA plasma style bar that is pre built and then on demand after a fitting the stem tube length is selected and then bonded to the bars. From the front the bars are super clean as the bond is in the stem tube. Would just need a clean way to set bar angle for different degree stems.


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Posted: Wed Feb 13, 2013 2:56 pm 
  • berk composites Lupina carbon saddle padded (3mm foam and leather) 132mm round rails 7mm
  • 235 EUR
  • Price includes 19% V.A.T. which will be deducted when goods are leaving the EU. Shipping costs may be added.


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PostPosted: Thu Feb 14, 2013 9:53 pm 
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Carbon Cowboy
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Joined: Sat Sep 04, 2010 7:20 pm
Posts: 1096
Location: Slovenia
I'll think about it. Otherwise a formum member contacted me, and offered me a very nice handlebar that could be used for a prototype bar/stem combo with my own stem. So if I get it I'll try to make it, really appreciate (thanks to Jamie from Australia!) :beerchug:

Otherwise it's almost finished...I just have to polish it a bit etc., so it will be finished during this weekend, will send then some more photos:

Image

Image

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Berk PROTO-TYPE Composites - Handmade In Slovenia
Berk Composites
http://www.berk-composites.com/
info(a)berk-composites.com


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PostPosted: Thu Feb 14, 2013 9:58 pm 
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Joined: Tue Apr 10, 2007 7:38 pm
Posts: 422
Location: Sweden
Looks great :thumbup:
Really smooth and slimmed, i like it...

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PostPosted: Thu Feb 14, 2013 10:06 pm 
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Location: Denmark. Yeeees
Mary me Jure.

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Last edited by Elrey on Fri Feb 15, 2013 9:31 am, edited 1 time in total.

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PostPosted: Fri Feb 15, 2013 12:38 am 
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Joined: Thu Oct 23, 2003 5:18 pm
Posts: 742
Location: Austin
absolutely fantastic job on that bar/stem Berk.

very neat trick there, cosmetic done without breather or peel. very smart.

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PostPosted: Fri Feb 15, 2013 12:55 am 
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Carbon Cowboy
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Location: Slovenia
Thanks!

@nicrump
Thanks for the compliment, really appreciate that from someone like you! If I'm honest it turned out better than I hoped. It was a bit tricky to make sure that the vacuum bag didn't "cut" in the carbon, to provide the nice finish, but it was more than worth the extra effort. Also the layup under the cosmetic layer was very important, I didn't wanted to get any "edge" between each layer if you know what I mean, and it turned out really nice.

I'll soon make some more photos, also from the front profile.

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Berk PROTO-TYPE Composites - Handmade In Slovenia
Berk Composites
http://www.berk-composites.com/
info(a)berk-composites.com


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PostPosted: Fri Feb 15, 2013 12:59 am 
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Location: Sweden
what is the final weight of it?

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PostPosted: Fri Feb 15, 2013 7:43 am 
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Posts: 155
Location: FRANCE
Very very nice
is it possible with all kind of stem and handlebar ?


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PostPosted: Fri Feb 15, 2013 8:45 am 
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Carbon Cowboy
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Location: Slovenia
Fuchspk wrote:
what is the final weight of it?


It's basicly the same, when I started it was 300g, now it's 2g less as on photo. If I wouldn't cover also the stem and the part between the joint and the handlebar tape I would save almost 10g.

@steff
Sure, anything would be possible. In the future I'll most probably try to make my own stem and laminate it to a bar, will see, I'll for sure let you know if/when I start with it.

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Berk PROTO-TYPE Composites - Handmade In Slovenia
Berk Composites
http://www.berk-composites.com/
info(a)berk-composites.com


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PostPosted: Fri Feb 15, 2013 8:51 am 
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Joined: Wed Aug 08, 2012 5:54 pm
Posts: 53
Hello Berk.
I have been watching your thread for a while and I have to say I am very impressed with your work. Very meticulous with an incredible attention to detail. I do a lot of composite work with my university here in the states and we were having issues with the bag cutting into the plys and we switched to stretchy vacbag. Stretchlon to be exact. Stretches to 400% and makes your life much easier. You just can't reuse it. But then again, you seem to be doing fine without so keep doing what you're doing.


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PostPosted: Fri Feb 15, 2013 9:11 am 
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Carbon Cowboy
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Posts: 1096
Location: Slovenia
Hi, thanks! Yes I also use it sometimes, for example when I made my frame (green foil) and for some more complex shapes/moulds. I never use the same bag for 2 products, so I could make it also with strechlon, but somehow prefer the ordinary foil for the vacuum bag.

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http://www.berk-composites.com/
info(a)berk-composites.com


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PostPosted: Fri Feb 15, 2013 1:22 pm 
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Location: FRANCE
Berk wrote:

@steff
Sure, anything would be possible. In the future I'll most probably try to make my own stem and laminate it to a bar, will see, I'll for sure let you know if/when I start with it.


ok , thanks because I have Nora stem and mcfk handlebar and a combo will match perfectly with my seatpost combo

Attachment:
cintre mcfk 009.jpg
cintre mcfk 009.jpg [ 14.86 KiB | Viewed 1672 times ]

Attachment:
cintre mcfk 003.jpg
cintre mcfk 003.jpg [ 14.43 KiB | Viewed 1671 times ]


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PostPosted: Fri Feb 15, 2013 1:46 pm 
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Posts: 422
Location: Sweden
300g? that´s heavy :D did you made it for cyclocross?

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PostPosted: Fri Feb 15, 2013 3:55 pm 
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Carbon Cowboy
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Location: Slovenia
:lol:
The reinforcements added around 20g for the joint + cosmetic layer, so the weight depends from the origina bar and stem.

@steff
it would be for sure possible to make it. It's even less complicated than that combo that I just made (because that type of clamping mechanism where I could just cut the area where the two bolts are and glue the bar in the stem, and then just add a few more carbon reinforcements).

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Berk PROTO-TYPE Composites - Handmade In Slovenia
Berk Composites
http://www.berk-composites.com/
info(a)berk-composites.com


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PostPosted: Fri Feb 15, 2013 7:55 pm 
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Joined: Tue Nov 24, 2009 12:37 pm
Posts: 207
Berk, slightly off the current topic, but did you get feedback from the Sky team on the seat and post combos you made them? Are they going to use them this year?

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Posted: Fri Feb 15, 2013 7:55 pm 
  • berk composites Lupina carbon saddle padded (3mm foam and leather) 132mm round rails 7mm
  • 235 EUR
  • Price includes 19% V.A.T. which will be deducted when goods are leaving the EU. Shipping costs may be added.


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