Originally Posted by mud
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.