Ключевые слова: authority, bike, black, bw, city, cycle, duty, emergency, enforcement, engine, frame, guard, headlamp, helmet, justice, law, leather, legal, light, machine, modern, monochrome, motor, motorbike, motorcycle, nobody, outdoor, outdoors, parked, patrol, police, protect, protection, road, safety, scene, security, sidewalk, sign, single, stationary, street, suspension, tire, transport, transportation, uniform, urban, vehicle, wheel, white, windshield,