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PostPosted: Thu Oct 17, 2013 2:33 pm 
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Joined: Mon Mar 28, 2011 6:46 pm
Posts: 333
Location: Amsterdam
My humble excuses, two post about delaminating carbon on one page got me confused.

My absolutely worthless opinion on the bars, does just look cosmetic doesn't it?


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PostPosted: Sat Oct 19, 2013 6:18 pm 
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Joined: Sat Aug 18, 2012 8:51 pm
Posts: 19
Gear has arrived.
-Assos F1 Uno bibs in black
-Speedplay Zero Chrome-Moly in black
-Castelli Belgian Oversocks in white
-Castelli Mesh Undershirt
-Fizik Performance Bar Tape in white
-Park Tools Pedal Wrench
-Speedplay parts and grease
-Patch Kit

Waiting to install the Speedplay pedals until I get them on some Ward Ti spindles.

Link to photo: https://plus.google.com/u/0/101108915701840716106/posts" onclick="window.open(this.href);return false;

_________________
2012 Cannondale CAAD10 3 - 8.08Kg
(Just began the weight reduction process)


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Posted: Sat Oct 19, 2013 6:18 pm 


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PostPosted: Mon Oct 21, 2013 9:42 am 
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Joined: Tue Feb 05, 2013 4:05 pm
Posts: 185
Location: Barcelona Spain
Some small things in the past days.

BBB lock ring wrench for my track bike
Image

Pro standard
Image

Shimano wet lube
Image

Shimano dry lube
Image

Elite tool pot
Image

Against cold toes
Image

Tekro brake shoes/pads for my track bike (I use it on the open road, and I do not go brakeless)
Image

Koolstop brake pads
Image

2 Rubino's for my girlfriend's bike
Image

Enough for now 8)

_________________
strava - youtube


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PostPosted: Mon Oct 21, 2013 9:43 am 
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Joined: Wed Mar 28, 2007 12:49 pm
Posts: 1596
Location: Near Horgen, Switzerland
djm wrote:
Got my hands on a slightly used 3T Ergosum LTD bars,


@TimmS and others, in my opinion those bars are scrap. Please don't ride them. Best use is to cut them up and glue the pieces together to make a nice carbon pen stand.

Typically the 3T bars fail because the faceplates on their stems bend with repeated tightening. Despite tightening to 4NM using a torque wrench, my ARX faceplates gradually bowed. Then the corners of the face plates dug into the bars causing a delamination. At first this feels like a slight bulge on the surface of the bar. Later the top layer of carbon will crack, first where the edge of the face plate bites into it, then a crack will start at 45 degrees following the alignment of the outer UD carbon layer. This is exactly the damage pattern shown on your bars. When it happened to mine I took them off the bike and tried to break them, but couldn't. Then after repeated abuse and some cracking noises they suddenly collapsed. Mine were Ergosum Teams and the 45 degree crack had just started.

The problem is that even if only one layer is damaged, the bars are slightly weaker in that spot, so repeated clamping will propagate the damage. Then at some point the bar will unexpectedly snap, with foreseeable consequences.


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PostPosted: Tue Oct 22, 2013 2:54 pm 
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Joined: Mon Apr 23, 2012 10:21 pm
Posts: 178
Location: London, UK
jsprbcn wrote:
Elite tool pot
Image


Need to pick one of these up as my white one gets really dirty in the winter.


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PostPosted: Tue Oct 22, 2013 3:30 pm 
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User avatar

Joined: Mon Jan 23, 2006 6:35 am
Posts: 5072
Location: New York
mrfish wrote:
djm wrote:
Got my hands on a slightly used 3T Ergosum LTD bars,


@TimmS and others, in my opinion those bars are scrap. Please don't ride them. Best use is to cut them up and glue the pieces together to make a nice carbon pen stand.

Typically the 3T bars fail because the faceplates on their stems bend with repeated tightening. Despite tightening to 4NM using a torque wrench, my ARX faceplates gradually bowed. Then the corners of the face plates dug into the bars causing a delamination. At first this feels like a slight bulge on the surface of the bar. Later the top layer of carbon will crack, first where the edge of the face plate bites into it, then a crack will start at 45 degrees following the alignment of the outer UD carbon layer. This is exactly the damage pattern shown on your bars. When it happened to mine I took them off the bike and tried to break them, but couldn't. Then after repeated abuse and some cracking noises they suddenly collapsed. Mine were Ergosum Teams and the 45 degree crack had just started.

The problem is that even if only one layer is damaged, the bars are slightly weaker in that spot, so repeated clamping will propagate the damage. Then at some point the bar will unexpectedly snap, with foreseeable consequences.


Best to buy aluminum for bars and stems. Plenty of light examples that last forever barring a crash. But even through a crash they are fine. Some things are best not being carbon.

_________________
I never took drugs to improve my performance at any time. I will be willing to stick my finger into a polygraph test if anyone with big media pull wants to take issue. If you buy a signed poster now it will not be tarnished later. --Graeme Obree


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PostPosted: Wed Oct 23, 2013 7:14 am 
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Joined: Mon Dec 20, 2010 9:25 am
Posts: 149
Location: Sydaaneeeee
jsprbcn wrote:
Elite tool pot
Image

Looks a bit like my grannies Thermos flask with its little cup for the tea... :lol:


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PostPosted: Wed Oct 23, 2013 7:58 am 
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Joined: Tue Feb 05, 2013 4:05 pm
Posts: 185
Location: Barcelona Spain
That's what I am going to use it for :-D
Or for the really cold days.. soup!

_________________
strava - youtube


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PostPosted: Wed Oct 23, 2013 10:38 pm 
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Joined: Thu May 14, 2009 12:19 pm
Posts: 1400
Location: Norway
Elite has a "thermos", an insulated bottle, crafted with much the same design as this tool case bottle.


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PostPosted: Thu Oct 24, 2013 9:57 am 
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Joined: Wed Mar 28, 2007 12:49 pm
Posts: 1596
Location: Near Horgen, Switzerland
jsprbcn wrote:
Or for the really cold days.. soup!


The Elite bottle would be ideal as the little holder would keep your croutons dry and crispy until you stop to eat. Now if only tupperware made bike bottles with a lifetime guarantee...


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PostPosted: Thu Oct 24, 2013 2:50 pm 
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Joined: Tue Feb 05, 2013 4:05 pm
Posts: 185
Location: Barcelona Spain
And with the famous Tupperware parties :-)

_________________
strava - youtube


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PostPosted: Fri Oct 25, 2013 1:56 pm 
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Joined: Sat Jun 23, 2007 12:41 am
Posts: 1703
Image

_________________
"It never gets easier, you just go faster..." - Greg Lemond

"I enjoy climbing...I enjoy seeing people disappear behind me." - Robert Millar


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PostPosted: Fri Oct 25, 2013 4:16 pm 
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Joined: Thu May 14, 2009 12:19 pm
Posts: 1400
Location: Norway
Wingnut; that thing is screaming for a nylon bolt ;-)


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PostPosted: Sat Oct 26, 2013 11:45 am 
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Joined: Tue Aug 18, 2009 11:40 pm
Posts: 114
Location: Brisbane QLD Aust
IF Steel Crown jewel with Enve 2.0 fork... Now to wait the 8weeks or so for it to be made and sent to australia :D

cheers Joe


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Posted: Sat Oct 26, 2013 11:45 am 


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PostPosted: Sat Oct 26, 2013 7:33 pm 
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Joined: Sun Jun 18, 2006 10:29 am
Posts: 5779
Location: Athens, Greece
Image

570gr @ size 44

_________________
My 6696gr Cipollini Bond
My 9733gr Colnago Master X-light


Last edited by kgt on Sun Oct 27, 2013 8:56 am, edited 1 time in total.

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