Ключевые слова: active, activity, adult, autumn, bicycle, bicyclist, bike, biker, biking, blue, boy, caucasian, competition, cycle, cyclist, down, downhill, equipment, exercise, extreme, fall, fun, grass, guy, health, healthy, helmet, hill, leisure, lifestyle, male, man, mountain, moving, nature, orange, outdoor, outside, people, person, race, recreation, ride, rider, sky, speed, sport, tree, wheel, young,