Shimano 105 SC #1055 7 speed Group Set from 1989/1990 diamond-back With Campagnolo #1030/2 pump head

With Campagnolo #1030/2 pump head | see pictures

Rohrsatz / tubeset: 979 Dural All Aluminium

Brakelevers are aero and non aero type

Clamp size / Klemmung:

band B type

Shimano 105 SC #1055 7 speed Group Set from 1989/1990 diamond-back With Campagnolo #1030/2 pump headCrankset Kurbelgarnitur : Front Chainwheel #FC 1055 SG 170 mm 42 52 tooth Biopace 9 16 x 20 Tpi. Pedals Pedale : Pedal #PD 1055 Aero toeclip size L 9 16 x 20 Tpi. Rear Derrailleur Schaltwerk : Rear Derailleur #RD 1055 friction 6 speed Shimano SIS 7 speed Shimano SIS Front Derailleur Umwerfer : Front Derailleur #FD 1055 F friction braze on Shifting levers Schalthebel : Shifitng Lever #SL 1055 friction 7 speed Shimano SIS brazed on Brake calipers