Speaking of carbon fiber failures

[peanutgallery]

Funny thing, the OP's shop is completely out of the equation on this one

No such thing as a Canyon dealer. Customer is on their own

[Louis]

Originally Posted by Buzz Killington

At least he kept the original box.

About 10 years ago Nashbar had a bunch of NOS Vitus 979 frame and forks on sale. I got one but never dared to build it up, and used the original EAI box it came in to send a f&f to Australia.

Knowing the history of the 979 and those bonded joints, I'm thinking that maybe I should have saved that box too - to dump all the pieces...

[fa63]

The chain came off but was surprisingly intact and undamaged.

Originally Posted by Vientomas

Chain suck under high torque results in a drive side chain stay failure and the non-drive side chain stay and seat stays follow?

I don't see the chain in the pics????

[jimoots]

Am I the only one who finds the protective piece of tape where the frame snapped a little suss?

[fa63]

Originally Posted by jimmy-moots

Am I the only one who finds the protective piece of tape where the frame snapped a little suss?

I believe that is what is left of the backing from the protective metal plate that attaches via sticky tape.

[JSL]

Originally Posted by prototoast

My guess is one of the chainstays had been weakened by a prior incident. It snapped, and then the second chainstay wasn't strong enough on its own, so it snapped. At that point, the rear wheel started to slip back and snapped both seatstays.

It may seem almost "simultaneous" to the rider, but in practice it was almost certainly sequential.

This ^

Could be his fault, could be not. Sometimes sh*t just breaks. It was built by a human and we all make mistakes at some point, so I'd be hesitant to judge too quickly.

[reuben]

I can think of two ways in which this happened, both of which have been mentioned here recently.

1) His wife got a haircut and he didn't notice.

2) He made the mistake of trying to fend off a bear with a carbon fiber bike.

[Louis]

Originally Posted by reuben

I can think of two ways in which this happened, both of which have been mentioned here recently.

1) His wife got a haircut and he didn't notice.

2) He made the mistake of trying to fend off a bear with a carbon fiber bike.

Maybe the guy is (was?) married to a bear who got a haircut and he didn't notice. Double whammy. He's lucky he wasn't torn to pieces himself.

[soulspinner]

The cranks cracked too in line with the frame. This was hit hard by something there.

[Jared Purdy]

Originally Posted by fa63

This came in to our shop today. Customer said the bike simultaneously snapped in four places (both the chain and staystays) when he stood up to pedal on a 10% grade. First time I have ever seen anything like this; customer said it was JRA and I don’t know the history of the bike.

On a positive note for internal cables; they sort of held the rear end together!

With the amount of abuse that bike has clearly experienced, the rider should be banned from owning a bike like that. It looks like he uses sandpaper to clan it.

[fellowpicker]

Plenty of clearance now for some fatter rubber.

[charliedid]

Originally Posted by reuben

I can think of two ways in which this happened, both of which have been mentioned here recently.

1) His wife got a haircut and he didn't notice.

2) He made the mistake of trying to fend off a bear with a carbon fiber bike.

What type of socks was he wearing? Hmm...

[glepore]

Looks to me like he hit a stick or something that scraped the crank while breaking the ds stay.

[tuscanyswe]

Originally Posted by prototoast

My guess is one of the chainstays had been weakened by a prior incident. It snapped, and then the second chainstay wasn't strong enough on its own, so it snapped. At that point, the rear wheel started to slip back and snapped both seatstays.

It may seem almost "simultaneous" to the rider, but in practice it was almost certainly sequential.

My thoughts as well

[jamesdak]

Well 3 pages so far and no one's gone there?

STEEL IS REAL and real men ride steel!