Italian chromed steel and aluminum Headset with italian thread probabaly from the 1940s, 1950s or 1960s ariake So often they are useable

So often they are useable for different (not mentioned) functions

Front Chainwheel #FC-7400 | 170 mm | 39/52 tooth | 9/16 x 20 Tpi

10 gear levers

it is made for braze-on front derailleur

5 mm / 121 mm

Italian chromed steel and aluminum Headset with italian thread probabaly from the 1940s, 1950s or 1960s ariake So often they are useableWeight Gewicht : 160 g Size Gre : 1"Crown race Gabelkonus : 26. 7 mmStack height Einbauhhe : 36. 5 mmThreading Gewindesteigung : 25. 4 mm x 24 Tpi (english ISO italian) Condition Zustand : See pictures Siehe BilderProduction date Produktionszeitraum : Probably 1940s 1960s Vermutlich 1940er 1960erPlease note Bemerkung : Spacer made of aluminum alloy, minor pitting, most probably vintage italian headset such as Agrati, Gnutti, Magistroni or others