Ключевые слова: action, activity, balance, bicycle, bike, biker, biking, boy, closeup, concrete, cool, cycle, edge, exercise, extreme, freeride, freestyle, full length, fun, green, helmet, jump, low angle, male, mountain bike, mtb, muscular, nature, outdoors, person, platform, rider, riding, risk, safety, sky, sport, street, stunt, tour, traffic, tree, trial, trick, urban, water, wheelie, wheely, young,