Something is amiss here. The SBX frames came out around '93. The style of decals on this bike are more from '86/86 time period so those are wrong to begin with. These were sold as frame only and as a bike but I'll have to check and see what components were offered on it.
as a side note I thought SBX was a special for Bianchi but I'll have to check that out. I don't think they ever made a SBX frame with Campi dropouts, the GipMe drops on this frame would be more common.
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“One morning you wake up, the girl is gone, the bikes are gone, all that's left behind is a pair of old tires and a tube of tubular glue, all squeezed out"
Sugar "Kane" Kowalczyk