Originally Posted by
unworthy1
OK the Nishiki Ultimate had Campy DOs, this could be one (repainted); if you determine it is Columbus tubing it might then be a Cervino or Maxima...pull out the fork and see what's stamped on the steerer, and if there's rifling at the base.
Tange "Champion" steer tubes were also rifled, but you can distinguish them from Columbus steer tubes in they Tange uses 6 helical ribs, while Columbus uses 5 helical ribs: