Ключевые слова: 1, activities, activity, airborne, bicycle, bicycles, bike, bikes, bmx, bycicle moto cross, cycling, exercising, feat, fit, fitness, hobbies, hobby, jumping, leaping, leisure, man, men, mid air, one person, outdoor, people, person, practising, recreational pursuit, riding bicycle, sport, sports, stunt, suspense, trick, wheel, wheels, young,