Tennessee Code Title 55. Motor and Other Vehicles § 55-8-177

(a) Every bicycle, when in use at nighttime, shall be equipped with a lamp on the front, which shall emit a white light visible from a distance of at least five hundred feet (500′) to the front, and either a red reflector or a lamp emitting a red light, which shall be visible from a distance of at least five hundred feet (500′) to the rear, when directly in front of lawful upper beams of head lamps on a motor vehicle.

(b) Every bicycle shall be equipped with a brake or brakes which will enable its driver to stop the bicycle within twenty-five feet (25′) from a speed of ten miles per hour (10 mph) on dry, level, clean pavement.

(c) A violation of this section is a Class C misdemeanor.