Shimano 600EX Arabesque #FC-6200 crankset with chainrings 45/52 teeth and 170mm length from 1981 sales this headset runs smaller balls

this headset runs smaller balls than usual headsets (25x5/32)

41 - 51 mm

Different teeth amounts for different positions

Thread/Gewinde :

According to the previous owner: A bikeshop replaced the upper part of the headset with Stronglight headset parts a few years ago

Shimano 600EX Arabesque #FC-6200 crankset with chainrings 45/52 teeth and 170mm length from 1981 sales this headset runs smaller ballsWeight Gewicht : 663 gr Length Lnge : 170 mm BCD : 130 mm Chainrings Kettenbltter : 45 52 Teeth Zhne Pedal Threading Pedalgewinde : English 9 16x20 F. Condition Zustand: see pictures ! Production date Produktionszeitraum : 1981 Please note Bemerkung :