Ключевые слова: activity, adventure, athlete, background, bicycle, bicyclist, biker, biking, bright, cycle, cyclist, downhill, equipment, evening, extreme, glasses, guy, healthy, helmet, hill, landscape, leisure, lifestyle, male, man, motion, mountain, mtb, nature, outdoor, precipice, race, recreation, resting, ride, rider, scene, silhouette, sky, speed, sport, stay, summer, sun, sunset, top, track, travel, wheel, young,