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Old 01-06-2013, 11:44 AM   #26731
k7
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I admire you cold-weather-riders. As for me, ain't no way.
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Old 01-06-2013, 03:21 PM   #26732
Gaston Gagne
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First time pedaling in 3 weeks. Ugh. I am out of shape. The valley below these photos is getting logged. Seen trail systems come, seen em go.









No turning back now.

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Old 01-06-2013, 08:56 PM   #26733
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Any strippers/builders of 531 Frames here?

I'm trying to identify a 1980s touring/road 63.5cm CTT frame. I was told it was made from 531 tubing. Its been repainted many times and has no stickers on its current coat. I wonder if anyone here knows a definitive way of determining what tubes were used in its construction?
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Old 01-07-2013, 08:41 AM   #26734
ducnut
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Originally Posted by scorpion View Post
Getting used to this whole winter riding thing.
Thinking about studded tires on a old wheel set to swap out when it gets nasty.
Staying surprisingly warm on my commute
I didn't realize it got that cold, out there.

Nokian W240 is a great, studded tire. More studded tire info, here.

That looks to be a Casseroll you've got, there. If you do decide to get studs, be careful of the tire sizing. A lot of the winter tires are lugged and, then, have the studs sticking out from the lugs.
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Old 01-07-2013, 11:03 AM   #26735
mud
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Quote:
Originally Posted by overlandr View Post
I'm trying to identify a 1980s touring/road 63.5cm CTT frame. I was told it was made from 531 tubing. Its been repainted many times and has no stickers on its current coat. I wonder if anyone here knows a definitive way of determining what tubes were used in its construction?
Not without testing the tubes themselves.

Pictures of the frame, especially the bottom of the bottom bracket (serial #?)may help identify it.
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Old 01-07-2013, 01:56 PM   #26736
Omi
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Quote:
Originally Posted by mud View Post
Not without testing the tubes themselves.

Pictures of the frame, especially the bottom of the bottom bracket (serial #?)may help identify it.
The serial number may be on the headtube or the bb. Most likely the bb though. Take a good pic of the dropouts too. They can help identify the frame.
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Old 01-08-2013, 04:13 AM   #26737
overlandr
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Quote:
Originally Posted by mud View Post
Not without testing the tubes themselves.

Pictures of the frame, especially the bottom of the bottom bracket (serial #?)may help identify it.
Apologies if I did not make this point clear: I'm really interested in identifying the tubes not the frame

Thanks but I assume that your strategy is based on the assumption that the manufacturer is known, keeps records of frames . The manufacturer is unknown so serial number is useless AFAIK. I'm hoping there is a more direct accurate method such as markings on tubes.

How might photos discriminate between many choices (BRANDS: Reynolds, Columbus, to name a few and then many choices of their respective tube types) of tubes? Surely, they cannot
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Old 01-08-2013, 05:28 AM   #26738
melville
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Originally Posted by overlandr View Post
Apologies if I did not make this point clear: I'm really interested in identifying the tubes not the frame

Thanks but I assume that your strategy is based on the assumption that the manufacturer is known, keeps records of frames . The manufacturer is unknown so serial number is useless AFAIK. I'm hoping there is a more direct accurate method such as markings on tubes.

How might photos discriminate between many choices (BRANDS: Reynolds, Columbus, to name a few and then many choices of their respective tube types) of tubes? Surely, they cannot
Columbus often has a symbol on the fork steerer tube, and if Columbus SLX you'll see riflings in the seat and downtubes where they come into the BB. Tange steerers have 6 internal riflings, Columbus have 5 IIRC.

I useta work with framebuilders who could ID fork blades (Columbus are rounder) and seat and chainstays (by diameter and taper) but I lack that eye/memory.
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Old 01-08-2013, 06:41 AM   #26739
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Quote:
Originally Posted by overlandr View Post
Apologies if I did not make this point clear: I'm really interested in identifying the tubes not the frame

Thanks but I assume that your strategy is based on the assumption that the manufacturer is known, keeps records of frames . The manufacturer is unknown so serial number is useless AFAIK. I'm hoping there is a more direct accurate method such as markings on tubes.

How might photos discriminate between many choices (BRANDS: Reynolds, Columbus, to name a few and then many choices of their respective tube types) of tubes? Surely, they cannot
No, you were clear.
My answer is the first one.

To tell if a specific tubeset is 531, cut it apart and destructively test the tubes..... You can figure out if it is columbus by show it to an old school builder. As stated above.

The pictures were to help if it was a production frame, we could figure it out.
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Old 01-08-2013, 06:48 AM   #26740
overlandr
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No, you were clear.
My answer is the first one. To tell if a specific tubeset is 531, cut it apart and destructively test the tubes..... You can figure out if it is columbus by show it to an old school builder. As stated above.

The pictures were to help if it was a production frame, we could figure it out.
Thanks. I'm very curious how one might tell from a few photos what type of tubing is used. Are there any links to this process? Here's one.



Has anyone here actually seen bare 531DB main tubes??

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Old 01-08-2013, 07:48 AM   #26741
mud
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Quote:
Originally Posted by overlandr View Post
Thanks. I'm very curious how one might tell from a few photos what type of tubing is used. Are there any links to this process? Here's one.



Has anyone here actually seen bare 531DB main tubes??
OK, I can't tell if you are being a smart ass or not.....

I will clarify.

If it is a true production touring frame (cantilevers, rack mounts, loooong chainstays) from the eighties, there are not that many manufactures, they are quite distinctive. With a few (if they are the right ones) pictures you can figure out who built it by looking at the dropouts, BB, serial number, etc.

If you have a blank frame with no stickers, generic dropouts, hand stamped serial numbers, there is nothing (or very little).

And with that. I am done.
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Old 01-08-2013, 12:38 PM   #26742
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Thanks Gwen!
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Old 01-08-2013, 12:41 PM   #26743
Gummee!
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First PM Rec'vd.

Thank you

.
If I had a running DS bike, I'd be PMing Shogs for the other set of bags. Looks like with minor work, they'd make great softbags for DS bikes.

Alas, the Husky doesn't look to be in running order any time soon, so whomever can use those bags should grab em

M
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Old 01-09-2013, 12:47 AM   #26744
overlandr
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OK, I can't tell if you are being a smart ass or not.....

And with that. I am done.
Negative on the yr first point but thanks for the info.

To others, reconfirm my interest is restricted to the brand and type of tubing used in the frame and nothing else. I want to keep it so destruction is not an option. I'm aware of the internal 'rifling' on Columbus SLX tubing and am hoping that there is some other perhaps similar method of determining whether I have 531 or not. To my untrained eye, it looks to be made of lower grade tubing.

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Old 01-09-2013, 06:41 AM   #26745
Chisenhallw
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Low 60's today? HEWW YEH, I'll take it! Time trial training starts today! Thank god I get off work at 3pm everyday.
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