NOS Shimano "Dura-Ace" Square taper Bottom Bracket Cups with english thread (BSA) sole 6 with included shims)

6 with included shims)

optimale Geometrie und 20 % Kraftersparnis

das Verlängerungsrohr #793/4 um den Hebelsarm zu erweitern fehlt

Steuerrohr / head tube:  10

37"x24T) Englisches Gewinde (#1370500)

NOS Shimano "Dura-Ace" Square taper Bottom Bracket Cups with english thread (BSA) sole 6 with included shims)Weight Gewicht : 87 g Thread Gewinde : 1,37" x 24T. (ENG) Production period Produktionszeitraum : ?? Condition Zustand: New old Stock (NOS) with signs from storage, see pictures Neue alte Lagerware mit Lagerspuren, siehe Bilder Note Bemerkung : These Shimano Cups are absolutly idetentical in construction to the #1370200 and #1370400 which had been used on all Dura Ace Road and Track assembly from the 1970s to mid 1980s such as first Gen Dura Ace, Dura