Originally Posted by
dedhed
Wi law:
The red rear reflector must be visible to others between 50 and 500 feet away.
I'd guess most states would have similar language.
Yes, rechecking my state's laws and it does say the rear red reflector must be visible at a distance from 100 to 600 feet to the rear of the bicycle when in front of a car's low beams. A lamp emitting a red light to 500 feet to the rear of the bicycle may also be used. Not sure what happens if it's visible further than 500 feet, I guess they haul you in.