Seat tube is 58.5c-c , top tube is 57.5c-c. 531c tubing See in photo of frame number drive side chainstay has a small dent on bottom of stay. The rest of the frame and fork is dent free. Original paint is in what I consider good condition.Small areas touched up but no rust or large losses. It’s slightly too small for me or I would keep it. All off the components are in excellent condition. Campagnolo c record front and rear derailleurs and crankset( 53-39 175mm) Campagnolo Doppler retrofriction shifters Campagnolo Chorus brakeset Mavic GEL 280 front, GL330 rear on American Classic hubs, Continental Giro tubulars Suntour Microlite freewheel KMC chain 3ttt Record 84 gunmetal stem 120 3ttt competitzione gunmetal bar 42cm Stronglight Delta Headset Paul Seatpost Assos saddle is NOT included. Your choice of San Marco Regal perforated or Selle Italia Superprofessional saddle will be substituted