I would think most any 110BCD crank would make a suitable 'compact' double, simply by putting smaller rings on it. personally I never saw reason behind the whole compact thing. if I am already using a 9 or 10spd 12-21 with a 42-53 is a 11-19 with 38-48 faster?
now I have always been a bit more of a masher than a spinner , so perhaps that is the reason I just don't get the whole compact thing
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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