Wheelchair racing is the racing of wheelchairs which is equivalent to the Olympics track, incluing all of the same events. Wheelchair racing is open to any type of disability, amputees, spinal cord injuries, cerebral palsy and partially sighted (when combined with another disability). Athletes have classifications in which the severity of their disability or combinations of the athlete's disabilities. Like running, it can take place on a track or as a road race. The main competitions take place at the Summer Paralympics which wheelchair racing and athletics has been a part of since 1960. Competitors compete in specialized wheelchairs which allow the athletes to reach speeds of 30 km/h or more.