Shimano 105 Golden Arrow groupset from the 80s 25-50 Hard to find some informations

Hard to find some informations to this brakes

Crankset / Kurbel: 684gr

2 mm clamp size

Reach/Einstellbereich : 47-58 mm

Bottom bracket / Innenlager :

Shimano 105 Golden Arrow groupset from the 80s 25-50 Hard to find some informationsCrankset Kurbelgarnitur : Shimano 105 Golden Arrow FC S125, 170mm, 620 gr. Rear Derraileur Schaltwerk : Shimano 105 Golden Arrow RD A105, 236 gr. Front Derailleur Umwerfer : Shimano 105 Golden Arrow FD A105, 28,6 clamp size, 114 gr. Brake levers Bremshebel : Shimano 105 Golden Arrow BL H105, clamp size 23,8 24,2 mm, 152 gr. Brake calipers Bremsen : Shimano 105 Golden Arrow BH S105, 328 gr. pair, reach : 43 57mm, Shifter Schalthebel : Shimano 105