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  1. #1
    Junior Member JesseMN's Avatar
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    Dented Steel Frame

    Reaching out to the bicycle community for some suggestions. Here is an old Centurion bicycle frame that might date back from 77 that's what I am gathering from the bottom of the serial code. The frame is steel. What you are seeing is where a kickstand use to take place there and over time whomever had owned the bicycle previous kept on tightening the hole and little by little crushed the bottom of the frame. I was checking to see if there were any cracks and there are none. I really want to save this bicycle and turn it into a fixed gear but in the process don't want to buy parts and let the frame crap out on me. I was thinking just as an idea to have the bottom of the frame be re welded. Any help would be much appreciated.

    Kindest Regards,
    Jesse

    IMG_2696.jpgIMG_7277.jpg
    Last edited by JesseMN; 02-27-14 at 01:09 AM.

  2. #2
    Senior Member Homebrew01's Avatar
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    Clean it up, get some fresh primer & paint on it & ride it.
    Check it periodically to see if any cracks develop.
    Bikes: Old steel race bikes, old Cannondale race bikes, less old Cannondale race bike, crappy old mtn bike

  3. #3
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    Dented Steel Frame

    Common occurrence. Look at the dimples on the driveside of the bike made for chainring clearance. A little flattening of the chainstays from an overzealous mechanic won't hurt anything.

  4. #4
    Junior Member JesseMN's Avatar
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    Good Morning,
    Thanks for the help. This is going to be my project bicycle before the summer.

  5. #5
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    The dents don't matter at all, but the depth of the rust might. I test these by probing with an ice pick. Scratch away to get a sense of the depth, and end by trying to push the pick through the thinnest place. Don't try to drive the pick through, just lean on it a bit.
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    WARNING, I'm from New York. Thin skinned people should maintain safe distance.

  6. #6
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    Quote Originally Posted by JesseMN View Post
    I was thinking just as an idea to have the bottom of the frame be re welded. Any help would be much appreciated.
    I don't think that frame was welded, it was brazed. If you want to replace the damaged parts, you will have to have them re-brazed into place.

  7. #7
    Senior Member
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    JesseMN, Very likely it'll be fine as long as there are no sharp creases. On my current build I had to make the very same judgement call, which I hope is correct.

    Brad.

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