There is no point of introducing Bianchi, the oldest bike manufacturer still in business. This rich yellow frameset is made on Columbus Cromolly steel tubes, welded together. What is hard to capture in fotographes, but is obvious in flesh, is that the down tube is slighly oversized and it's cross section changes from a circle at the top and it flattens near the bottom bracket. It will be a great base for a stable bike, which can carry also heavier riders without any concerns.
Rear axle width: 127 mm
Steerer length: 190 mm (threaded part: 40 mm)
Bottom bracket: BSA (1,370x24T)
Seatpost diameter: 27.0 mm
Front derailleur attachement: clamp
For 700C rims (28" wheels)