I don't think the profile looks right for Mach2s, theses are more rounded than the Mach2s look. also don't Mach2s normally have eyelets?
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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