Originally Posted by
ItsJustMe
Center out two car lengths (25 feet?) seems a bit tight if you have descents. I want light more than 25 feet out if I hit 25 MPH on the horrible roads I'm on sometimes. I have situations where I can move to avoid a pothole, and be trapped in a converging V of potholes, if that happens with only 25 feet of warning, I will not be able to stop in time and I'm looking at between a pinch flat and a crash.
I don't know what kind of cars you drive but 2 average "car lengths" is more than 25 feet. More like 30 to 35. Honestly, my the lights on my bike at about 30 to (say) 40 feet shine further out than the lights on my truck.