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Busted Carbon

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Busted Carbon

Old 11-29-10, 06:06 PM
  #26  
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Originally Posted by 2ndGen View Post
Buy American!
Why do you hate China?
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Old 11-29-10, 06:07 PM
  #27  
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Originally Posted by roadCruiser76 View Post
That is why I don't mountain bike. Road all the way for me and my carbon bike!


The potentials of crashing from a drop vs crashing while flying down the road at close to 30mph or getting hit by a car?

Both sport accidents would hurt my delicates!

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Old 11-29-10, 06:07 PM
  #28  
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Originally Posted by 2ndGen View Post
How many riders here have had incidents of carbon busting on them?
Carbon fork, carbon wheels, carbon bars, carbon spokes, carbon saddle rails.

Originally Posted by 2ndGen View Post
How many riders here have had incidents of non-carbon bikes busting on them?
Aluminum frame, aluminum cranks, aluminum bars, metal spokes (steel?), metal saddle rails.
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Old 11-29-10, 06:09 PM
  #29  
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Originally Posted by umd View Post
Carbon fork, carbon wheels, carbon bars, carbon spokes.



Aluminum frame, aluminum cranks, aluminum bars, metal spokes (steel?)
more than likely, or titanium (less likely)
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Old 11-29-10, 06:10 PM
  #30  
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Originally Posted by Grumpy McTrumpy View Post
more than likely, or titanium (less likely)
Don't Ksyriums have aluminum spokes? Is Zircal an aluminum alloy?
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Old 11-29-10, 06:10 PM
  #31  
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30,000 +miles on this full carbon fiber custom tandem bicycle . . . . . . including Easton c/f handlebars, front and rear; c/f cranks; c/f fork . . .

Have BROKEN 2 steel tandem frames and and one steel tandem fork . . .

So you still ride steel**********

Anything can wear or break eventually.
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Old 11-29-10, 06:10 PM
  #32  
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Originally Posted by umd View Post
Carbon fork, carbon wheels, carbon bars, carbon spokes, carbon saddle rails.



Aluminum frame, aluminum cranks, aluminum bars, metal spokes (steel?), metal saddle rails.
Everybody see that?
It swings both ways.
It ain't just the material,
but the usage & build quality.

(thank you umd for a clear response)
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Old 11-29-10, 06:11 PM
  #33  
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Oh yeah, cracked the eyelets on an aluminum rim too.

Most of my list is crash damage. Actually I guess except the spokes it's all crash damage, although it didn't all break in the crashes. Some of those items broke after the crash. Some quite some time after.
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Old 11-29-10, 06:13 PM
  #34  
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Originally Posted by umd View Post
Don't Ksyriums have aluminum spokes? Is Zircal an aluminum alloy?
I don't know. My ksyriums have steel spokes. Not sure what zircal is but I assume the al part stands for aluminum
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Old 11-29-10, 06:13 PM
  #35  
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Originally Posted by patentcad View Post
Fixed.
__________________
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Two wheels good. Four wheels bad.
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Old 11-29-10, 06:14 PM
  #36  
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Originally Posted by umd View Post
Don't Ksyriums have aluminum spokes? Is Zircal an aluminum alloy?
Yes (it is Zicral, by the way).
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Old 11-29-10, 06:14 PM
  #37  
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Originally Posted by zonatandem View Post
Anything can wear or break eventually.
Totally.

I'd say that those who put on more miles or who race will wear something out faster.
I'd imagine that all materials have life expectancy numbers depending on their usage.

In an extreme example, a carbon bike used as a recreational rig every other weekend will more
likely than not outlast one that is raced every weekend and trained on during the week.
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Old 11-29-10, 06:15 PM
  #38  
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Originally Posted by 2ndGen View Post
Everybody see that?
It swings both ways.
It ain't just the material,
but the usage & build quality.

(thank you umd for a clear response)
I'm en equal opportunity destroyer. I'm hard on my equipment.

Carbon fork and wheel:


Aluminum crank:
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Old 11-29-10, 06:15 PM
  #39  
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Next week the UCI proclaims that all riders must ride fully lugged straight gauge Rivendells in a move towards rider safety.


Carbon safety cages in F1 cars seem to hold up pretty well.

Like the rest of the car, most of the monocoque is constructed from carbon fibre. Normally it comprises high-density woven laminate exterior panels, and a strong, light 'honeycomb' structure inside. Constructing the monocoque is one of the biggest jobs faced by a team's composite technicians. It's not dissimilar to a 1:1 scale model kit, with hundreds of separate carbon fibre components being bonded together using very powerful adhesives.
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Old 11-29-10, 06:15 PM
  #40  
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Originally Posted by fa63 View Post
Yes (it is Zicral, by the way).
oh.. then 7075 aluminum
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Old 11-29-10, 06:16 PM
  #41  
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Originally Posted by 2ndGen View Post
Everybody see that?
It swings both ways.
It ain't just the material,
but the usage & build quality.

(thank you umd for a clear response)
which, just to be clear, has nothing to do with where the product is made.
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Old 11-29-10, 06:16 PM
  #42  
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Originally Posted by umd View Post
Oh yeah, cracked the eyelets on an aluminum rim too.

Most of my list is crash damage. Actually I guess except the spokes it's all crash damage, although it didn't all break in the crashes. Some of those items broke after the crash. Some quite some time after.
That brings up an interesting point. Most of that was during crashes.

Ok, edit: Same questions, but just failures from "riding" as it was designed?

In other words, who's had their bikes asplode from just normal riding (not racing, not in a crash, etc...)?
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Old 11-29-10, 06:16 PM
  #43  
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Originally Posted by fa63 View Post
Yes (it is Zicral, by the way).
Thanks. Funny thing is I wasn't sure so I did a google search. It didn't correct me and I got lots of hits so I figured it was right. Guess it's a common misspelling...
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Old 11-29-10, 06:17 PM
  #44  
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Originally Posted by umd View Post
I'm en equal opportunity destroyer. I'm hard on my equipment.

you are the walking fire sale.
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Old 11-29-10, 06:20 PM
  #45  
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Originally Posted by 2ndGen View Post
That brings up an interesting point. Most of that was during crashes.

Ok, edit: Same questions, but just failures from "riding" as it was designed?

In other words, who's had their bikes asplode from just normal riding (not racing, not in a crash, etc...)?
Nothing that can't probably be traced back to damage from a crash at some point. Except for my RD, which committed suicide by jumping into my spokes when an internal (metal) bolt sheared off. So there was a metal and carbon component involved, but all indications point to the failure of the metal first.
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Old 11-29-10, 06:20 PM
  #46  
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Originally Posted by umd View Post
I'm en equal opportunity destroyer. I'm hard on my equipment.

Carbon fork and wheel:


Aluminum crank:
NICE!
Baptized in blood!
No risk, no rewards!
Awesome!

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Old 11-29-10, 06:38 PM
  #47  
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Originally Posted by 2ndGen View Post
Ok, edit: Same questions, but just failures from "riding" as it was designed?

In other words, who's had their bikes asplode from just normal riding (not racing, not in a crash, etc...)?
Someone around here posted pics of aluminum bars that had corroded into dust under the shifter clamps. The bar tape was pretty much the only thing holding the drops to the rest of the bar. Fortunately for him, he discovered this while retaping the bars and not after a crash.

Carbon won't corrode...
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Old 11-29-10, 06:46 PM
  #48  
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I've had bike frames break from "just" riding, but none were catastrophic.
Steel Raleigh: cracked seat stay
Ti Airborne: cracked chainstay
Cervelo R3: BB insert came unbonded

I have not had a frame break from a crash, not even the R3 which I crashed hard at speed. The BB insert became loose some three years after the crash.
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Old 11-29-10, 06:46 PM
  #49  
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Originally Posted by BarracksSi View Post
Someone around here posted pics of aluminum bars that had corroded into dust under the shifter clamps. The bar tape was pretty much the only thing holding the drops to the rest of the bar. Fortunately for him, he discovered this while retaping the bars and not after a crash.

Carbon won't corrode...
I read somewhere in the webesphere that carbon that comes in contact with aluminum corrodes if not properly prepared.

Also, after hearing so many Thomson evangelists boasting about how they never break,
I posted about 1/2 a dozen pics I came across from a simple <5 second Google Image search.

I don't have anything against Thomson (matter of fact, they are my preferred choice for MTB rigs).

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Old 11-29-10, 06:47 PM
  #50  
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Originally Posted by BarracksSi View Post
Someone around here posted pics of aluminum bars that had corroded into dust under the shifter clamps. The bar tape was pretty much the only thing holding the drops to the rest of the bar. Fortunately for him, he discovered this while retaping the bars and not after a crash.

Carbon won't corrode...
Okay, you're going to have to explain this one a bit more. Aluminum doesn't usually corrode in this manner. Are you sure these weren't steel bars? In aluminum (steel is a different story) corrosion forms a self-protecting layer of aluminum oxide.

More than likely, the bars showed a bit of corrosion under the clamp, but the main feature would be the unseen crack at the clamp caused by a combination of over torquing the clamping bolt and fatigue.
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