Ключевые слова: action, active, adult, adventure, athlete, bicycle, bicyclist, biker, biking, color image, cycling, cyclist, downhill, dynamic, equipment, exercise, exploration, extreme, fitness, harmony, healthy, helmet, hill, horizontal, investigation, lifestyle, male, man, motion, mountain, mountain bike, mountains, movement, nature, one person, outdoors, person, race, recreation, ride, rider, searching, sky, speed, sport, summer, trail, travel,