Dent repaired an old Serotta.

[tiretrax]

I read a few other posts - you do great work on bikes and your blog.

[Hilltopperny]

Great stuff Allan! I have a Winter cycles cx bike sitting here with a top tube dent that I would love to have fixed. I just don't have the skills to do it! I have been wondering how it is done for quite a while.

[zmudshark]

Originally Posted by Dekonick

Thanks for sharing! $50 is a 'steel'!

Agreed.

[charliedid]

Interesting. I learned something new.

[AllanVarcoe]

Originally Posted by m_sasso

Or should I be asking this question to the painter?

I would ask a painter. That's definitely not my specialty. Haha!

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[AllanVarcoe]

Originally Posted by paredown

Nice job.



The one time I tried this (with admittedly more amateur blocks made from oak), and perhaps a dent that had more of a crease in the bottom--I did get most of the dent to roll out, but I also got a hairline crack in what had been the bottom crease. (The crack may have been there to begin with--I really don't know).



How much stress would said crack be under? And would it be acceptable to braze (as you have done) and call it good?

I mean, I would try to braze up the crack but only on my personal bike. I would never let someone else's frame go away like that.

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[AllanVarcoe]

Originally Posted by guyintense

I wonder if you were able to seal the tube and compress a couple hundred pounds of air into it if just heating up the area of the dent with a torch would have any affect.

Of course Sheldon Brown had a better idea.



https://www.sheldonbrown.com/dent-removal.html

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[AllanVarcoe]

Originally Posted by tiretrax

I read a few other posts - you do great work on bikes and your blog.

Thanks man!!! I am really fortunate to have chosen a career path that lines up closely to bikes, making this awesome hobby possible.

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[AllanVarcoe]

Originally Posted by Hilltopperny

Great stuff Allan! I have a Winter cycles cx bike sitting here with a top tube dent that I would love to have fixed. I just don't have the skills to do it! I have been wondering how it is done for quite a while.

I wonder how much Eric would charge to do that?

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[AllanVarcoe]

Originally Posted by Dekonick

Thanks for sharing! $50 is a 'steel'!

Lolol!!!! I do it for the fun but figured I'd make enough to cover material and tooling for the tube block I made. Plus enough to take my son out for a milk shake.

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[guyintense]

Originally Posted by AllanVarcoe

Lolol!!!! I do it for the fun but figured I'd make enough to cover material and tooling for the tube block I made. Plus enough to take my son out for a milk shake.

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I wondered why you made your block instead of buying one from Paragon or Bicycle research.

[mjf]

Nice! Definitely something I had considered on one of my bikes in the past.

But at least my dent in the seattube isn't hurting anything. Maybe if I repaint it though

[LouDeeter]

I recall when removing dents in cars that the metal also stretches a bit, which is one of the reasons that it is hard to get the original metal perfect, without the bronze filler. I tried this a few times with purchased frame blocks. At first, I tried to do it with out removing the paint--not. Then, like you, removed the paint and greased it. Where I failed was that I didn't understand the final step of filling with bronze. Bondo doesn't work, at least for long. Nice explanation. You could advertise this as a business. $50 for the work, another $50 for shipping to you and then to the painter and that is cheap to remove a dent which might be reducing the value of a frame by much more than that. The cost of repainting is likely the wild card here. There is a very nice frame on the classifieds right now, with a dent, but to replicate the entire paint of that frame would be prohibitively expensive. I've often wondered how hard it would be to repaint just the damaged tube, trying to either match paint or create a new paint scheme.

[AllanVarcoe]

Originally Posted by guyintense

I wondered why you made your block instead of buying one from Paragon or Bicycle research.

Speed and convenience really.

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[AllanVarcoe]

Originally Posted by mjf

Nice! Definitely something I had considered on one of my bikes in the past.



But at least my dent in the seattube isn't hurting anything. Maybe if I repaint it though

I have done one other dent repair in my life and it was on a seat tube. Ha!

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