New bicycles sold in the United States must be equipped with front, side, and rear reflectors, according to CPSC regulations. The front and side reflectors are usually white, and the rear reflector is red. The front reflector is usually installed near the headset, the rear reflector under the seat or at the end of a rear rack, and the side reflectors on the spokes of the wheels. Cyclists also often wear reflective clothing.
Lights, powered either by batteries or by generators activated by the rotation of the bicycle wheels, may clip to the handlebars and seatstays. Some cyclists also wear helmet-mounted headlights and white, amber, or red flashing taillights attached to their bicycles, helmets, backpacks, arms, legs, or belts.