Ключевые слова: action, active, activity, adrenaline, adventure, bike, competition, competitive, cross, cup, czech, danger, dangerous, dirt, drive, europe, event, extreme, fun, helmet, land, male, man, motor, motorized, moving, mud, off road, outdoor, person, power, quick, race, republic, riding, risk, safety, sidecar, speed, sport, terrain, thrill, tire, track, trail, transport, vehicle, wheels, winner,