around 82' or 83', my best friend had an older brother that was a B pro at the time, and columbia made an effort to become a name in racing and signed him. ( he was also best friends with jim paiva who rode for skyway ) don't think they went for more than a couple years.
after a few months, i became the owner of his first columbia racing frame.
don't remember much about tube sizing, but i think i remember it was an oversized downtube. 4130, not aluminum, no decals, and a ( at the time ) very unique in the bmx world the color was a wicked black chrome.
i know i traded it for something, but don't remember what ...