Originally Posted by Milton Keynes

That's what I've done. Each wheel has 8 strips of white reflective tape spaced between every 4 spokes. So not only will they see the wheel reflectors (which I'm too much of a Fred to remove) but they'll also see the diameter of my two wheels and should instantly realize that it's a bike.

*edit* Ulp, I too didn't realize I was replying to a very old thread. My first day back after being away from BF for a while. But this is still a very good idea.