both have cranks, but with no pedals.It´s normal in the catalog's photos, because there are several kinds of pedal clips, so the pedals are bought separately.

this is the only pic I've found, but I'm sure there is some kind of transmission connecting both cranks.

 Yea, I know about theno pedals bit in photots I was just looking at the lack of a front chainring:/ as you say they must be connected!