Ключевые слова: adult, adventure, athlete, background, bicycle, bicycling, biker, boy, btt, championship, competitive, cycle, cyclist, danger, donwhill, downhill, equipment, exercise, extreme, forest, freestyle, fun, green, guy, health, hill, male, men, motion, mountainbike, one, outdoor, pedal, people, portugal, race, racer, recreation, rider, riding, speed, sport, stone, style, trail, tree, vehicle, wheel,