Ключевые слова: action, active, activity, adventure, background, bicycle, bike, biker, biking, bmx, bmx bike, bmx rider, boy, challenge, cyclist, danger, dangerous, exercise, extreme, extreme sports, fear, fitness, forest, freestyle, helmet, hobby, jump, land, leisure, lifestyle, male, man, motion, outdoor, person, recreation, ride, rider, risk, skillful, sport, sportive, summer, sun, sunset, trick, wheel, young, youth,