Crack in frame
01-15-11, 02:52 PM
#1
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Crack in frame
I have an aluminum bike frame that has a hair-line crack in it. The frame isn't a very expensive one, so welding it is out of the question.
I thought to use epoxy to repair it. What do you think? Any suggestions/advice you may have would be helpful.
ThanksBike fram crack.jpg
I thought to use epoxy to repair it. What do you think? Any suggestions/advice you may have would be helpful.
ThanksBike fram crack.jpg
01-15-11, 03:06 PM
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bin the frame and save the components
it's not worth the chance of it propagating through and failing
it's not worth the chance of it propagating through and failing
01-15-11, 03:42 PM
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Epoxy applied straight into/over the crack isn't even worth trying.
If it's a crack that's at least 2" away from any weld you can apply epoxy and carbon fiber as a "plaster cast", but the material alone would set you back just as much(if not more) than the cost of visiting a helpful welder.
If it's a crack that's at least 2" away from any weld you can apply epoxy and carbon fiber as a "plaster cast", but the material alone would set you back just as much(if not more) than the cost of visiting a helpful welder.
01-15-11, 03:52 PM
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It all depends where the crack is, and what caused it.
Some can be ridden forever without any repair, some will grow, but can be salvaged, and some are clear and present dangers and the frame should be given to the scrap man.
Some can be ridden forever without any repair, some will grow, but can be salvaged, and some are clear and present dangers and the frame should be given to the scrap man.
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An ounce of diagnosis is worth a pound of cure.
“Never argue with an idiot. He will only bring you down to his level and beat you with experience.”, George Carlin
“One accurate measurement is worth a thousand expert opinions” - Adm Grace Murray Hopper - USN
WARNING, I'm from New York. Thin skinned people should maintain safe distance.
01-15-11, 04:21 PM
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I'd also add that there's no real way to tell which of those descriptions your crack fits just from looking at that picture, maybe cross-post this in the framebuilders' section of the site and someone will know how to determine which it is.
01-15-11, 04:47 PM
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Boy, is this the time for cracked aluminum frames.
01-15-11, 04:55 PM
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In my view, any crack of any kind, on an aluminum frame, is dangerous. You just don't know when it's gonna give way. I am not a firecrack bike mechanic, but an old wrench I know and trust, told me a long time ago not to mess riding/fixing any aluminum frame/component with a crack.
I trust his judgement absolutely!
I trust his judgement absolutely!
01-15-11, 05:39 PM
#8
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So now you started TWO NEW threads about the same cracked frame? If you wanted to add the picture you should have posted them to this thread instead of making a whole new one with the pictures in it.
Here's the other thread folks.
https://www.bikeforums.net/showthread...Crack-in-frame
Geosammy, you should ask the moderator to just delete this thread or merge it with the one in the link I just gave.
Here's the other thread folks.
https://www.bikeforums.net/showthread...Crack-in-frame
Geosammy, you should ask the moderator to just delete this thread or merge it with the one in the link I just gave.
01-15-11, 05:47 PM
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Or he could simply edit the post without pictures, replacing it with "duplicate, see other post with pictures", or use a link.
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An ounce of diagnosis is worth a pound of cure.
“Never argue with an idiot. He will only bring you down to his level and beat you with experience.”, George Carlin
“One accurate measurement is worth a thousand expert opinions” - Adm Grace Murray Hopper - USN
WARNING, I'm from New York. Thin skinned people should maintain safe distance.
FB
Chain-L site
An ounce of diagnosis is worth a pound of cure.
“Never argue with an idiot. He will only bring you down to his level and beat you with experience.”, George Carlin
“One accurate measurement is worth a thousand expert opinions” - Adm Grace Murray Hopper - USN
WARNING, I'm from New York. Thin skinned people should maintain safe distance.
01-16-11, 12:20 AM
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The post is as is... Nothing more. If you find a problem with this, I apologize.
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