The pics are lousy for identification but I agree a low end import from Asia. Are you and the bike in the U.S.? Pacer may be a 'house brand' for some parts supplier like Diamond or GT used to be before the bikes got bigger than the parts.
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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