But then they did not put it back into the drop weight test mechanism and check the flex failure again. Could have been interesting. Did you notice that when the CF frame did completely fail, it broke clean through the tube.

Don't complain when your tail drags.

And you only drink during the drum solo.

...or you ground loop it.

Hey, wait, this has been a fun and interesting trolling experience, unlike all of the 41 trolling experiences that are meaningless and noneducational.

hahahahahahahahahahahahahahahahahahahahahahaha

Word to the cousin my brother!

While recently dismantling my crapbon Pinarello F3-13 I found it cracked in the down tube near the BB and don't know how long I rode it like that. But at least it didn't "asplode" on me and surely I must have rode it some distance cracked.
It doesn't really bother me because a used 6 year old carbon frame is pretty much worthless anyway and all the value is in the groupset and wheels. I never really warmed to riding it and my steel Olympia kills it so not complaining just relived it didn't snap in two at 80kph.

i did notice how the crabon asploded.. but it did take a lot more before it failed.. the aluminum frame looked even more sketchy.

a frame cracking just from falling over sounds crazy, especially after seeing the way they were abusing the frame in that video. but i guess that was a mtb frame which is more heavy duty

Peoria People.

A certain US model would do just that.

Like almost all carbon bikes, the seat tube ended a cm or two above the top tube, and it had no collar, but a molded-in binder. It had an aluminum "sleeve" inside the seat tube that went down about 2". The cavity of the seat tube itself bottomed out about 6" down.

The design called for the seat post to be cut perfectly, and inserted all the way to where it stopped at the bottom of the seat tube cavity. Unwittingly, riders would raise the seat post and leave a gap between the bottom of the seat tube and the bottom of the seat post.

Once the seat post was raised enough, the seat post and saddle had considerable "leverage" if acted upon by forces, especially from the side. Often enough, the bike would fall over, the saddle would hit the ground, and that leverage would cause the top of the seat tube to be cracked. I've seen the aluminum sleeve crack completely through and still be held in place by the adhesive inside the carbon seat tube. I've also seen it happen on the models with aero seat posts that are a lot beefier, but the seat tube on those has no aluminum sleeve.

I've fixed two of them like that, though the manufacturer told me "it's possible, but not recommended." I pulled out the sleeve remnants, cleaned and prepped the area with some stuff used in windshield replacement, and then used a glue supplied by a windshield replacement firm to reset the sleeve in place. Once it set, I had to hone out the residue, and it was like new, probably stronger than when new.

Every I've worked on one of these models, I've told the owner to get a new seat post, and cut it to reach the bottom. Not one has done it, but at least they were informed.

I also saw this happen to a Schwinn 564 that the owner had configured with the quill seat post out to the minimum insertion line. It fell over, the saddle hit the ground, and it cracked the seat tube above the top tube.

i guess that makes more sense.. I was imaging the frame cracking from the impact alone, but this sounds like a bad combination of poor design and user error creating the leverage needed

Yep, it's gotten me two free frames when the owner was told to throw it away.

so you might enjoy reading about frames breaking too

A bit of history: Schwinn introduced the lifetime frame warranty as a marketing ploy to help them compete with the lower-quality bikes sold in department stores, Western Auto, etc. Other bike companies selling in the U.S. eventually and reluctantly followed suit.

As late at the early '80s, at least some European companies offered no warranty on frames. A Bianchi sales rep told me back then that Bianchi USA took care of frame warranty claims without compensation from Bianchi of Italy. According to him, the management of Bianchi of Italy thought that the idea of offering a warranty on race frames was hilarious. They said, "We can sell race frames with a warranty if you like, but they'll be a kilo heavier."

One of the original CF frame manufacturers offered a lifetime warranty.
Even though they stopped making frames a while ago, they honored the warranty, may still do so.

Aegis. If this was my size, I'd be all over it.

I see similar issues a lot on frames with extended seat tubes, especially ATBs. Owners raise the post to the point where the bottom of the post is above the top tube. The post is in pure cantilever loading, without the reinforcement provided by the top tube junction. Under such conditions, even with metal tubesets, the failures can be very dramatic. The tops of aluminum tubes will snap off and the steel will buckle, fold back like hinge, and often rupture.

That's Princeton to you sir.

I am? I'm talking about breakage. What are you talking about? All types of frames break. Some warn you first. Steel is safer as a result, since you can get off the bike before it breaks.
Please. That's not funny. Let's not perpetuate that stereotype, please.

I hate bike frames, regardless of material.

I hate haters.

I now hate you, for hating me, Why all the hate?

I see more steel bikes than I can count that have been ridden hard for generations. So far I have not seen any carbon bikes that I can say that about.

I have broken steel and aluminum frames, cheap ones and expensive ones, either by riding or being hit. I have been hit three times on steel frame bicycles, one was a head on collision with a jeep at 25mph. Each time was on a different bike, of the three bikes only one broke and it was a very tiny crack in the seat cluster.

Then there is this blog.

https://www.bustedcarbon.com/

Though it may happen, I don't believe we will see very many carbon bikes graduate to C$V.

My personal experience trumps statistics, charts and sales hype. At least in my mind. I have ridden carbon, steel, ti and aluminum. As long as it's my money being spent there is only steel. Of course if everyone is drooling over carbon, it makes more steel more attainable for me and I have to love that.

This.

I think someone should start a carbon haters sub forum