Ключевые слова: action, active, bicycle, bicyclist, bike, biker, biking, championship, competition, concentration, cycle, cycling, cyclist, downhill, dust, enjoyment, exercise, exploration, extreme, fast, helmet, lifestyle, man, mountain, mountain bike, one person, outdoors, outside, people, professional, race, recreation, ride, riding, road, speed, sport, sports, summer, sun, woman,