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Grades of Columbus tubing?(5 posts)

Grades of Columbus tubing?Jeff R
Aug 22, 2001 10:18 AM
Does anyone know how many grades of steel Columbus has used in the last 10 years? I recently bought a used Ciocc which has Columbus SL tubing. Is this lower grade or higher grade tubing? Just trying to figure out if this frame was higher or lower end. Thanks.
re: Grades of Columbus tubing?Breezydz
Aug 22, 2001 11:09 AM
If my memory is working SL was in the middle of a good line - better than Aelle or Thron, less stiff but slightly lighter than SLX or SPX, not as good as TSX. Depending on when it was made there were other higher end Columbus tubes as well. My wife has an SL Pinarello that she loves almost as much as the kids and the dog. No modern conveniences can convince her to get a new bike.
re: Grades of Columbus tubing?Jack S
Aug 22, 2001 11:23 AM
SL was actually the top dog at one point, then SLX came out, and more and more. SL is good stuff, they just don't make it any more. You can find some limited tubing info on Bulltek's site.
re: Grades of Columbus tubing?DaveG
Aug 22, 2001 3:42 PM
Here's an excerpt from the Torelli website:

Cyclex. This cro-moly has 900 Newton/square mm tensile
strength with 12% elongation. This superb steel is proven to
work. Until the recent advent of Nivachrome, it was the state of
the art steel for Columbus. It has a reasonable cost and makes a
professional quality tubeset. Columbus uses it for SLX, SL, the
three main tubes of Brain, and the forks and rear triangle of
Neuron.
re: Grades of Columbus tubing?wes
Aug 22, 2001 3:45 PM
Jeff - I think I remember you from somewhere. Got a Ciocc for $185 or something?

SL is good stuff. About 8-10 years ago, SL is what you would get if you weiged in below 150-160 lbs. Otherwise you would get SLX. The difference is that SLX has some ribbing on the inside making it a bit stiffer (and heavier).

In 1993 or so, Columbus steel came out with Nivacrom, EL/OS, Genius and other stuff like that. The diference was that they started playing with the shape of the tubes, butting, size and whatever to make the steel lighter and stiffer. However, SL steel would still have been very high quality tubing. Sort of like today's aluminum. 7003 is better than 7005, but both come in all sorts of shapes, sizes and etc... SL is high quality, but later tubesets sport enhanced tube design.

As for where it comes in the Columbus line - like another post said, it's in a totally different league from tubesets like thron or whatever. Ciocc never used crappy stuff.

Just check it for rust, if there is any, get rid of it. Ciocc frames are sweet, so don't worry about it. You did good.