Black. Classic bullet design turn signal combination with turn signal, taillight and brake light which will allow you to ride street-legal with a super clean 'turn signals only' styled set-up. The light ring is the the actual red taillight, turning to amber flashing when the turn signal is activated. Brake light is center of the light that becomes illuminated when braking. M8 x 20 threaded. Housing diameter 39mm. ECE approved for motorcycles rear (50R 12).