Ключевые слова: action, ambition, bicycle, bike, buzzer, competition, contest, crowd, cycle, danger, dangerous, dirt, downhill, enduro, exciting, extreme, forest, frame, freeride, fun, gravity, helmet, injury, jump, leisure, mountain, nature, outdoor, pedaling, people, race, racetrack, rider, risk, roots, secured, spectator, speed, sports, terrain, thrilling, tire, track, trail, tree, trend, vegetation, viewer, wood, woods,