Originally Posted by gunsports
More, I have noticed that; where bikes have additional riding lights; arranged in a form of a triangle with the riding lights on the extremeties of the bike; judging their approach speed seems to be better and more accurate.
I stumbled onto that decades ago with an old vetter fairing and the running lights down low. I frequently got comments about how visible I was, and how well they could judge me. From friends on their bikes, to cars at traffic lights. The difference was and is substantial.
Big Harley's carry this advantage as well, it's their stock lighting configuration. They also have physically large running lights.