I ride a motorcycle and bicycle regularly. I generally don't focus my mirrors on right behind me. At most, when I'm at a red light, I lean over slightly to mak

I ride a motorcycle and bicycle regularly. I generally don't focus my mirrors on right behind me. At most, when I'm at a red light, I lean over slightly to make sure the next person is actually going to stop and not rear-end me. Otherwise, while in motion, I have never felt the need for a rearview mirror on any form of two-wheeled vehicle.