Originally Posted by TiHabanero

I work in a shop and we have a policy about qualifying frame damage. There is no way to assure the owner the frame has not sustained damage that is hidden. My personal experience with carbon has taught me to always be skeptical of the integrity of the thing after any type of crash. Broken steerers, handlebars, and down tubes well after a crash have all passed through my hands at the shop.

Case 1, fella came in with a busted carbon hbar 1 year almost to the date after a bad crash that damaged the right brifter. The bar broke exactly at the brifter hbar clamp. Leads me to believe the damage was there, but unseen.

Case 2, fella contacted me about a broken carbon steerer. 1 year prior he had crashed quite badly and twisted the handlebar. Loosened stem and rotated back into position and has been riding it since then. About 10000 miles later the stem broke as he shoved off from his house to go on a ride. It broke exactly at the bottom of the stem clamp.

Case 3, fella ran into a parked car. No apparent damage seen so he thought nothing of it, but brought it in for inspection. 1 year later almost to the day the down tube split the entire length on the underside and he crashed and was badly hurt. Fortunately we were astute enough to have recorded the inspection and comments associated with it. In the comments we specifically told the guy there can easily be hidden damage in the frame tubes and he must get it inspected by a qualified repair center. He never did; We know this because he sued everyone who ever touched the bike. Settled out of court.

Case 4, 5, 6, 7, 8...there are plenty more. I just cut up a Giant Defy fork with a paint chip at the crown. Had been involved in a crash. Looking at the cross section where the chip is reveals the carbon is crushed and no longer whole. Happily we were able to convince him to replace the fork a week earlier rather than send him out on it.

Ride it if you desire, just be well aware that what you don't see can harm you.

Originally Posted by jay4usc

sorry to hear about your accident. I wouldn’t risk it with a carbon bike bc if something snaps while going down hill it will be another painful accident. Sell the frame and buy a new one. Sell it as a trainer bike. Ride safely!

Originally Posted by Atlas Shrugged

How in good conscience can someone sell a bike they crashed and are unsure of its safety so lets dump it off on someone else. Even with the vague warning to be used as a trainer bike is selfish to say the least. If unsure then destroy or ride it yourself. Sad commentary.

Originally Posted by jay4usc

don’t be stupid, of course you as the seller have to disclose on why you are selling it as a trainer bike. The obvious question from a buyer is why you are selling it as a trainer.

Originally Posted by Atlas Shrugged

Why not destroy it if you determine it's not safe to be used as a bicycle. I will take the being stupid comment, you are not the first to throw that accusation. I have also been called considerate and having empathy over greed. So it all works out in the wash besides my dog loves me.

Originally Posted by TiHabanero

I work in a shop and we have a policy about qualifying frame damage. There is no way to assure the owner the frame has not sustained damage that is hidden. My personal experience with carbon has taught me to always be skeptical of the integrity of the thing after any type of crash. Broken steerers, handlebars, and down tubes well after a crash have all passed through my hands at the shop.

Case 1, fella came in with a busted carbon hbar 1 year almost to the date after a bad crash that damaged the right brifter. The bar broke exactly at the brifter hbar clamp. Leads me to believe the damage was there, but unseen.

Case 2, fella contacted me about a broken carbon steerer. 1 year prior he had crashed quite badly and twisted the handlebar. Loosened stem and rotated back into position and has been riding it since then. About 10000 miles later the stem broke as he shoved off from his house to go on a ride. It broke exactly at the bottom of the stem clamp.

Case 3, fella ran into a parked car. No apparent damage seen so he thought nothing of it, but brought it in for inspection. 1 year later almost to the day the down tube split the entire length on the underside and he crashed and was badly hurt. Fortunately we were astute enough to have recorded the inspection and comments associated with it. In the comments we specifically told the guy there can easily be hidden damage in the frame tubes and he must get it inspected by a qualified repair center. He never did; We know this because he sued everyone who ever touched the bike. Settled out of court.

Case 4, 5, 6, 7, 8...there are plenty more. I just cut up a Giant Defy fork with a paint chip at the crown. Had been involved in a crash. Looking at the cross section where the chip is reveals the carbon is crushed and no longer whole. Happily we were able to convince him to replace the fork a week earlier rather than send him out on it.

Ride it if you desire, just be well aware that what you don't see can harm you.

Originally Posted by Pratt

Seems to me that asking the question indicates that you have already answered it, and you don't trust the frame.

Originally Posted by Pratt

Seems to me that asking the question indicates that you have already answered it, and you don't trust the frame.

Originally Posted by bmcer

I now have a new bike and the crashed bike has taken up permanent residence in my direct drive trainer. As others have said, once it's taken a significant impact, carbon isn't to be trusted.