Nice looking bike, but looks big for a 60. Too bad it doesn't still have the original....OH which was the original 105 group? The champagne colored 105SC or the plane jane silver 105?
I don't think these 10 Speed Drive frames were hand built by a single craftsman laboring away to perfection but rather a sort of assembly line type thing. I think one group of people built rear triangles, one group built fronts and third welded the two togather. then sent them on to the next lot for alignment and prep work.
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Bianchis '90 Proto, '90 Campione del Fausto Giamondi Specialisma Italiano Mundo, '91 Boarala 'cross, '93 Project 3, '86 Volpe, '97 Ti Megatube, '93 Reparto Corse SBX
Others but still loved; '80 Batavus Professional, '87 Cornelo, '?? Jane Doe (still on the drawing board), '90ish Haro Escape SLX Bertoni "Speckled Trout"