Ключевые слова: abstract, action, active, adventure, bicycle, bicyclist, bike, biker, biking, black, cycle, cyclist, down, downhill, enduro, evening, exercise, extreme, grass, helmet, hill, landscape, lifestyle, male, man, motion, mountain, mtb, nature, outdoor, outside, race, ray, recreation, ride, rider, safety, silhouette, sky, space, speed, sport, summer, sun, sunset, text, trail, wheel, yellow, young,