Originally Posted by Trakhak

Somewhere out there, someone has preserved a mid-1980's spec sheet from Columbus that specified the weight limits for their various tube sets (steel, of course). The only one I remember is their SL set, with a weight limit equivalent to about 180 lbs. I believe there was a size limit, too, with a recommendation that larger frames (58 cm and up?) be built with SP tubes rather than SL.

Seems low now, but almost of the people buying racing frames in those days were fit racers, probably averaging somewhat under 160 lbs. Even tall American racers tended to be slender enough to stay under the SL weight limit.