169.222 OPERATION OF BICYCLE.......more drivel........
subd. 6. Bicycle equipment. (a) No person shall operate a bicycle at nighttime unless the bicycle or its operator is equipped with a lamp which shall emit a white light visible from a distance of at least 500 feet to the front and with a red reflector of a type approved by the Department of Public Safety which is visible from all distances from 100 feet to 600 feet to the rear when directly in front of lawful lower beams of headlamps on a motor vehicle.
A bicycle may be equipped with a rear lamp that emits a red flashing signal.