Ключевые слова: abstract, acrobatics, action, adrenaline, air, athlete, bicycle, bicycle motocross, bike, biker, biking, bmx, bmx bike, boy, clouds, competition, cycle, cyclist, danger, dirt, dirt jump, dirtjump, electric castle, extreme, extreme sport, finale, flying, free ride, freestyle, gloves, hard, helmet, high rail, isolated, jump, man, person, ramp, silhouette, skatepark, skills, sky, spin, sport, stunt, tabletop, teenager, trick, young, youth,