Olumbus SP and SL NOS
Can anyone describe the nature and differences between Columbus SL, and Columbus SP? I did a search and found:
Columbus SL tubing was .9mm x .6mm x .9mm for all main tubes
I also found it described as too light for heavier stronger riders (which is odd given that those dimensions are pretty standard for heavier duty bikes.
Apparently the sets I am choosing from only have 1" top tubes which could be part of the problem (thinking touring bikes for larger riders mostly).
All I could find about the SP is that it had heavier downtubes.
The SL comes in A, B, C, lengths, presumably butt lengths, does anyone know the sizing on those.
I was also wondering whether this stuff can be tigged. I'm currently buying it for lugs, but I wouldn't want to have too much of anything around that didn't work for TIG also. I'm thinking out of the box here. Magnesium can be tigged. Just because a manufacturer was slagging tig, doesn't mean it won't work. Was this stuff HTd?