Time ASX Titan failure (Happened this morning!)

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SYST6	Post subject: i had time failure as well, using record now , recommend Posted: Wed Nov 28, 2007 1:00 pm
Joined: Wed May 09, 2007 1:23 pm Posts: 39	wholeheartedly. on my asx titan the axle / spider literally twisted in the carbon fiber literally leaving pedals at 2 o'clock/ 6 o'clock. Further, I was only given partial credit on the cranks which I used to purchase second pair of record cranks No problems with the record/ second stiffest cranks i've ever used w/ tighter q factor than time !
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Weenie	Post subject: i had time failure as well, using record now , recommend Posted: Wed Nov 28, 2007 1:00 pm
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zebragonzo	Post subject: Posted: Wed Nov 28, 2007 1:39 pm
Joined: Thu Oct 18, 2007 7:35 am Posts: 949	What I would ask is if you'd crashed on these bikes before? There tends to be some sort of impact that causes delamination for spontaneous failure of this standard being as carbon doesn't exhibit most metal trends for failure modes.
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Paulo Casalta	Post subject: Posted: Wed Nov 28, 2007 2:18 pm
Joined: Tue Nov 27, 2007 4:32 pm Posts: 20 Location: Portugal	The only crash I had was dued to the failure of the crankset No previous damage or impact on my case.
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zebragonzo	Post subject: Posted: Wed Nov 28, 2007 2:42 pm
Joined: Thu Oct 18, 2007 7:35 am Posts: 949	I suppose it's down to the manufacturer then. I've had a lecure this morning about why CF fails!
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mises	Post subject: Posted: Wed Nov 28, 2007 4:02 pm
Joined: Tue Dec 23, 2003 9:28 pm Posts: 1769 Location: Unknown parameter	To me it's bad design or bad manufacturing. If low weight was the problem then THM would be having significantly more failures than Stronglight/Time. It's still largely manual work and all you need is one lazy employee who decides his job would be easier doing the layup his way.
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Coolhand	Post subject: Posted: Wed Nov 28, 2007 7:11 pm
Joined: Mon Jul 05, 2004 5:03 pm Posts: 778	Speedgoat had something in their bikeblog a while back about Time crank failures as well. FYI _________________ This forum would be a better place if you had to know what you were talking about prior to posting. And if you took yourself less seriously.
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DocRay	Post subject: Posted: Wed Nov 28, 2007 9:44 pm
Banned Joined: Tue Sep 06, 2005 1:33 am Posts: 3468 Location: Hamilton, Canada	Paulo Casalta wrote: So, for as much as you hate carbon stuff, your words are nothing but unfair and bitter. My opinion is that carbon fiber is not a material with universal applications in cycling. It has it's place, just not everywhere. I ride a carbon bike with carbon wheels.
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DocRay	Post subject: Posted: Wed Nov 28, 2007 9:48 pm
Banned Joined: Tue Sep 06, 2005 1:33 am Posts: 3468 Location: Hamilton, Canada	zebragonzo wrote: There tends to be some sort of impact that causes delamination for spontaneous failure of this standard being as carbon doesn't exhibit most metal trends for failure modes. That's true, it really doesn't fatigue, but inproper resin penetration and curing will get worse with time and use. Porosity is problem with metal castings, but the industry has dealt with this very well. Of course, this could all just be very bad luck.
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Alpinist	Post subject: Posted: Sun Jan 13, 2008 4:28 pm
Joined: Sat Dec 24, 2005 4:08 pm Posts: 54 Location: southeast VA	I lost 3 bolts. Upon removing the small chain ring, I found 3 eyelets cracked. I will replace the time crank set with another brand. I'm glad I did not have a failure while riding. 2 thumbs down for Time cranks. _________________ Dare to Fail
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beatnik	Post subject: Posted: Wed Jan 16, 2008 7:40 pm
Joined: Thu Aug 03, 2006 6:38 pm Posts: 1237	I doesn´t surprise to me. Yours is not the first i see. _________________ Biomechanical spreadsheet. Sizing&Fitting. http://weightweenies.starbike.com/forum ... 8e319d185b
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Sasha011	Post subject: Posted: Wed Jan 16, 2008 7:47 pm
Joined: Tue May 01, 2007 5:40 pm Posts: 631	does anyone have the picture of the duar-ace left crankarm hanging on the shoe of a discovery rider after a fall??? it is from the 2005 season and i think it is manuel beltran...
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beatnik	Post subject: Posted: Wed Jan 16, 2008 7:48 pm
Joined: Thu Aug 03, 2006 6:38 pm Posts: 1237	_________________ Biomechanical spreadsheet. Sizing&Fitting. http://weightweenies.starbike.com/forum ... 8e319d185b
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Irish	Post subject: Posted: Wed Jan 16, 2008 7:50 pm
Joined: Mon Jul 26, 2004 8:57 pm Posts: 772 Location: Ireland	THIS COULD BE THE VERY REASON CAMPAG USE SMALLER CHAINRING BOLTS ON THIER CRANKS = MORE MATERIAL +GREATER STRENGHT
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jipperd	Post subject: Posted: Wed Jan 16, 2008 7:50 pm
Moderator / Brake Pad Boy Joined: Wed Dec 13, 2006 11:44 am Posts: 1249 Location: Holland	Sasha011 wrote: does anyone have the picture of the duar-ace left crankarm hanging on the shoe of a discovery rider after a fall??? it is from the 2005 season and i think it is manuel beltran... It was Benoit Joachim in the 2005 Vuelta: http://weightweenies.starbike.com/forum ... p?id=23809 _________________ Colnago extreme-C Scott Addict SL Last edited by jipperd on Wed Jan 16, 2008 7:52 pm, edited 2 times in total.
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beatnik	Post subject: Posted: Wed Jan 16, 2008 7:52 pm
Joined: Thu Aug 03, 2006 6:38 pm Posts: 1237	That crankarm is not broken at all _________________ Biomechanical spreadsheet. Sizing&Fitting. http://weightweenies.starbike.com/forum ... 8e319d185b Last edited by beatnik on Wed Jan 16, 2008 8:01 pm, edited 1 time in total.
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Weenie	Post subject: Posted: Wed Jan 16, 2008 7:52 pm
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