Ebay advice

[Shadez]

looks like there might be a crack there, as its carbon i dont see how he can prove it was there before sale.

 

[Bloodknut]

second hand goods, he paid and took the bike so was happy with the deal, even if the wheels had fell off before getting to the end of your road, there is no legal thing he can do

 

[alexakasloth]

Tough luck for him, it was sold as seen.

To me it sounds like he's trying to pull a fast one.

 

[Danger Phoenix]

Seriously, tell him to get lost! He bought it after seeing it, and if he didn't spot that then its entirely his fault...

 

[The_Raven]

only 1 way i can think of is oxidation of the insides of the crack, this whould only happen after relativlly long exposiure

But that would mean there was no grease or not enough inside the bit where the crack seats

this would cause a realy load noise (i would think) as you would hear it grind and more then likely feel it as well

As as if the ball bearings have gone

pics would be nice thou

 

[The_Raven]

Full size shots:

thats nothing thats not even all the way thou me personaly i would lamp them one and tell them to naff off

it looks like its painted over so would have come from the shop like that when it was first made

 

[krisboats]

But that would mean there was no grease or not enough inside the bit where the crack seats

this would cause a realy load noise (i would think) as you would hear it grind and more then likely feel it as well

As as if the ball bearings have gone

pics would be nice thou

Take it you've never ridden a cracked bike then? The type of rub he was reffering to was that of cracked aluminium/magnesium/Ti. Carbon generally doesn't flex and crack in a small amount it usually cracks on a large scale or completely snaps. However with a crack in aluminium you can tell its age by fully snapping it and checking to see if the inside of the crak is smooth or rough. If its rough inside its a fresh crack, if its smooth inside its been cracked for a while and has had chance for each section of the crack to flex and rub against each other. It doesn't make a noise and you usually wont notice unless theres a large amount of flex or you see it before it breaks completely.

thats nothing thats not even all the way thou me personaly i would lamp them one and tell them to naff off

it looks like its painted over so would have come from the shop like that when it was first made

Its not painted, its lacquered. And it doesn't need to be all the way through, if several layers of the weave are deeply scratched or broken with a crack the overall strength of the carbon is severely affected. Any cracked/deeply scratched carbon should be replaced immediately.


It does however look like its cracked from what appears to be the join on the left hand side of those pictures. The only way to truly know its severity is to cut the carbon and check its depth, though the manufacturer will have to do this as it'll void your warranty and for obvious reasons render the part useless. Lightly sanding the lacquer off with wet and dry around the scratch then scraping it with a pin will be another way to tell its depth. I can't really tell from the photo's but theres always the possibility thats its only the surface layer of the lacquer thats cracked... especially seeing as carbon usually just snaps clean apart.

 

[SpeedFreak]

SOLD AS SEEN

 

[The_Raven]

Take it you've never ridden a cracked bike then? The type of rub he was reffering to was that of cracked aluminium/magnesium/Ti. Carbon generally doesn't flex and crack in a small amount it usually cracks on a large scale or completely snaps. However with a crack in aluminium you can tell its age by fully snapping it and checking to see if the inside of the crak is smooth or rough. If its rough inside its a fresh crack, if its smooth inside its been cracked for a while and has had chance for each section of the crack to flex and rub against each other. It doesn't make a noise and you usually wont notice unless theres a large amount of flex or you see it before it breaks completely.





Its not painted, its lacquered. And it doesn't need to be all the way through, if several layers of the weave are deeply scratched or broken with a crack the overall strength of the carbon is severely affected. Any cracked/deeply scratched carbon should be replaced immediately.


It does however look like its cracked from what appears to be the join on the left hand side of those pictures. The only way to truly know its severity is to cut the carbon and check its depth, though the manufacturer will have to do this as it'll void your warranty and for obvious reasons render the part useless. Lightly sanding the lacquer off with wet and dry around the scratch then scraping it with a pin will be another way to tell its depth. I can't really tell from the photo's but theres always the possibility thats its only the surface layer of the lacquer thats cracked... especially seeing as carbon usually just snaps clean apart.

well that put me in my place lol

i was thinking back to the old days where bikes we're made of steel (i think steel they were dam heavy)

i would take it that the pics are of a new bike and thats something i know nothing off sorry

but would it not help us and the thread if we knew say the bike make brand and what its made off ??