Originally Posted by
wphamilton
Do you suppose that a couple of aluminum plates in the soles of your biking shoes would trigger it, if you put your foot down directly on the loop? My instinct is that it would work.
Look at picture that DanoXYZ posted. Your wheel will do a much better job than plates, magnets, bolts, cleats, etc. There's no need to kludge together something when you have wheels that will do the same job.