Mine are on the trolling motor, and the transom (cv52's). As said above- you can "look" forward by turning the trolling motor. Keep in mind, when you do this, the image will be distorted for a few seconds.
The units (73sv+) came with both transom and trolling motor mounts. Not sure what comes with strikers.
If your transducer will not fit your motor, their are lots of options available.
Might want to test fit / measure it first.