I'm 6', 210 pounds, and I don't give riding a Columbus SL or Tange1 framesets a second thought. In fact, other than my '64 Atala, which is tore down, I don't think I have a straight gauge frameset. I do have to admit my current favorite ride is a Columbus SP frame............
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My bikes: '81 Trek 957, '83 Trek 720, '84 Trek 770, '85 Centurion Cinelli