Hi DJ. when SIS first appeared on the lowend bikes the parts were simply maked 'shimano SIS' just like yours. does hte rear wheel bolt on or is it QR? for bikes from that time period that is a better indicator of quality. and a Chromoly fork rather than a HiTensil
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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