on the '80 the cranks is listed as a SR Alloy 39/52T the brakes are Diacompe 730 with touring levers.
this will be a real nice bike when you get ti cleaned up and running.
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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