Time ASX Titan failure (Happened this morning!)
Moderator: robbosmans
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 !
No problems with the record/ second stiffest cranks i've ever used w/ tighter q factor than time !
- zebragonzo
- Posts: 971
- Joined: Thu Oct 18, 2007 7:35 am
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.
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
- Posts: 19
- Joined: Tue Nov 27, 2007 4:32 pm
- Location: Portugal
The only crash I had was dued to the failure of the crankset
No previous damage or impact on my case.
No previous damage or impact on my case.
- zebragonzo
- Posts: 971
- Joined: Thu Oct 18, 2007 7:35 am
I suppose it's down to the manufacturer then. I've had a lecure this morning about why CF fails!
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.
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.
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.
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.
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.
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
I doesn´t surprise to me. Yours is not the first i see.
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
Last edited by jipperd on Wed Jan 16, 2008 7:52 pm, edited 2 times in total.
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That crankarm is not broken at all
Last edited by beatnik on Wed Jan 16, 2008 8:01 pm, edited 1 time in total.