Columbus EL Oversize 11 pc tubeset unicrown
Nivacrom
28.6 top tube and seat tube requiring a 27.2 seat post.
31.7 down tube
30 x 16 chain stays
Dia 16mm seat stays
31.7 Head tube
25.4 steerer
Unicrown fork blades.
See https://hillbrick.com.au/columbus-catalogs for full specs
This set is hard to find these but a great set in the 80's and 90's.
