Ключевые слова: acrobatic, active, adrenaline, adventure, athlete, balance, bicycle, bicyclist, bike, biker, biking, bmx, boulder, cycling, cyclist, dangerous, downhill, exercise, extreme, freerider, gear, helmet, hill, lifestyle, male, man, mountain bike, mtb, nature, outdoor, park, people, professional, rider, riding, rock, skill, sport, standing, stunt, sun, sunlight, sunset, top, training, transportation, trial, trial biking, trick, wheel,