The official : "what have you bought today" topic

Questions about bike hire abroad and everything light bike related. No off-topic chat please

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TimmS
Posts: 356
Joined: Mon Mar 28, 2011 6:46 pm
Location: Amsterdam

by TimmS

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?

by Weenie


THSdrummer
Posts: 19
Joined: Sat Aug 18, 2012 8:51 pm

by THSdrummer

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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jsprbcn
Posts: 190
Joined: Tue Feb 05, 2013 4:05 pm
Location: Barcelona Spain
Contact:

by jsprbcn

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
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2 Rubino's for my girlfriend's bike
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Enough for now 8)

mrfish
Posts: 1617
Joined: Wed Mar 28, 2007 12:49 pm
Location: Near Horgen, Switzerland

by mrfish

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.

deltree
Posts: 198
Joined: Mon Apr 23, 2012 10:21 pm
Location: London, UK

by deltree

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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stella-azzurra
Posts: 5072
Joined: Mon Jan 23, 2006 6:35 am
Location: New York

by stella-azzurra

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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SvenNijs
Posts: 152
Joined: Mon Dec 20, 2010 9:25 am
Location: Sydaaneeeee

by SvenNijs

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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jsprbcn
Posts: 190
Joined: Tue Feb 05, 2013 4:05 pm
Location: Barcelona Spain
Contact:

by jsprbcn

That's what I am going to use it for :-D
Or for the really cold days.. soup!

djm
Posts: 1403
Joined: Thu May 14, 2009 12:19 pm
Location: Norway

by djm

Elite has a "thermos", an insulated bottle, crafted with much the same design as this tool case bottle.

mrfish
Posts: 1617
Joined: Wed Mar 28, 2007 12:49 pm
Location: Near Horgen, Switzerland

by mrfish

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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jsprbcn
Posts: 190
Joined: Tue Feb 05, 2013 4:05 pm
Location: Barcelona Spain
Contact:

by jsprbcn

And with the famous Tupperware parties :-)

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Wingnut
Posts: 1854
Joined: Sat Jun 23, 2007 12:41 am

by Wingnut

Image
"It's not the destination...it's the ride!"

djm
Posts: 1403
Joined: Thu May 14, 2009 12:19 pm
Location: Norway

by djm

Wingnut; that thing is screaming for a nylon bolt ;-)

dodge
Posts: 114
Joined: Tue Aug 18, 2009 11:40 pm
Location: Brisbane QLD Aust

by dodge

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

by Weenie


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kgt
Posts: 6752
Joined: Sun Jun 18, 2006 10:29 am
Location: Athens, Greece

by kgt

Image

570gr @ size 44
Last edited by kgt on Sun Oct 27, 2013 8:56 am, edited 1 time in total.

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