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Old 06-17-16, 04:38 AM   #1
estebe
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Van Tuyl with chrome issue

I would like some advice regarding a vintage Van Tuyl bike (Columbus MS tubing)... long story short after buying it, I left it with my mechanic for inspection and there were some rust spots on the underside of the right hand chain stay (in the chrome). Now, he says that he couldn`t remove the rust with thin foil and WD 40 so he used some hard rubber polishing thingy in a cordless drill to clean it off so as to be able to see how deep the rust ran. The results are in the picture...the indentations are really small but it catches the fingernail. Big problem, no problem, should i just carry on? Tank you


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Last edited by estebe; 06-17-16 at 06:02 AM.
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Old 06-17-16, 05:09 AM   #2
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From your picture it looks like dents are not very deep. Rear triangle tubes are most often straight gauge so their wall thickness isn't terribly thin.

If the frames doesn't feel noodly under pressure I wouldn't worry about it. I would cover it with protective layer of transparent paint tho.
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Old 06-17-16, 06:04 AM   #3
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No problemo.
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Old 06-17-16, 06:40 AM   #4
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I concur with Pawlus and thinktubes, but you do owe us some pictures of the rest of the bike.
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Old 06-17-16, 07:31 AM   #5
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^^^+1
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Old 06-17-16, 08:10 AM   #6
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Pics coming after a thorough wash In the meantime some more images of the problem area(zoomable pics)
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Old 06-17-16, 08:26 AM   #7
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Not a problem, from a structural integrity, in my opinion. Only thing I can see is a cosmetic issue. I would touch it over with silver paint and then worry not, keeping in mind to inspect, from time to time.
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Old 06-17-16, 04:40 PM   #8
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I have ridden a lot worse and survived.

+1 to more pics of the bike. Racing Feather?
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Old 06-20-16, 03:15 AM   #9
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Quote:
Originally Posted by non-fixie View Post
I have ridden a lot worse and survived.

+1 to more pics of the bike. Racing Feather?

I have no idea actually. It`s a funny one (probably repainted at one point in its life-there is a sticker on the frame with Varnish by Carlo Dosoventa), the junction between the head tube-top tube and down tube it TIG welded but there is a lug at the seat tube-top tube junction. The top tube, down tube and left hand chain stay are asymmetrical yet the seat tube is round... No marking of tubing used but i guess is Columbus MS?

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Old 06-20-16, 07:11 AM   #10
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My wife's Tomasini Tecno Extra is the same with a seat cluster lug and welded everywhere else. It is Columbus Genius.

I would second the advice of a dab of paint on those spots as it looks to me like naked steel under there, then ride on!
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Old 06-20-16, 07:38 AM   #11
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Hmm...yet, as far as I know, Genius used regular shaped tubing while mine does not except on the seat tube. Anyways, while mainly cosmetic, it really bothers me that I have a deep-ish scratch in one spot so I might look into repainting/professional repair, though I doubt that except total removal and recoating anything more can be done to the chrome...
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Old 06-21-16, 04:38 AM   #12
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Ok, so further research revealed that MS tubing was designed for 25.4 seatpost while mine has a 27.2 so it might not be MS after all...
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Old 07-17-16, 02:03 PM   #13
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Anyone who would care to shed some light on asymmetrical Columbus tubing? Would really like to know what I have here. I`m happy to take more photos if needed...
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